---
_id: '9817'
abstract:
- lang: eng
text: Elastic bending of initially flat slender elements allows the realization
and economic fabrication of intriguing curved shapes. In this work, we derive
an intuitive but rigorous geometric characterization of the design space of plane
elastic rods with variable stiffness. It enables designers to determine which
shapes are physically viable with active bending by visual inspection alone. Building
on these insights, we propose a method for efficiently designing the geometry
of a flat elastic rod that realizes a target equilibrium curve, which only requires
solving a linear program. We implement this method in an interactive computational
design tool that gives feedback about the feasibility of a design, and computes
the geometry of the structural elements necessary to realize it within an instant.
The tool also offers an iterative optimization routine that improves the fabricability
of a model while modifying it as little as possible. In addition, we use our geometric
characterization to derive an algorithm for analyzing and recovering the stability
of elastic curves that would otherwise snap out of their unstable equilibrium
shapes by buckling. We show the efficacy of our approach by designing and manufacturing
several physical models that are assembled from flat elements.
acknowledgement: "We thank the anonymous reviewers for their generous feedback, and
Michal Piovarči for his help in producing the supplemental video. This project has
received funding from the European Research Council (ERC) under the European Union’s
Horizon 2020 research and innovation programme (grant agreement No 715767).\r\n"
article_number: '126'
article_processing_charge: No
article_type: original
author:
- first_name: Christian
full_name: Hafner, Christian
id: 400429CC-F248-11E8-B48F-1D18A9856A87
last_name: Hafner
- first_name: Bernd
full_name: Bickel, Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
citation:
ama: Hafner C, Bickel B. The design space of plane elastic curves. ACM Transactions
on Graphics. 2021;40(4). doi:10.1145/3450626.3459800
apa: 'Hafner, C., & Bickel, B. (2021). The design space of plane elastic curves.
ACM Transactions on Graphics. Virtual: Association for Computing Machinery.
https://doi.org/10.1145/3450626.3459800'
chicago: Hafner, Christian, and Bernd Bickel. “The Design Space of Plane Elastic
Curves.” ACM Transactions on Graphics. Association for Computing Machinery,
2021. https://doi.org/10.1145/3450626.3459800.
ieee: C. Hafner and B. Bickel, “The design space of plane elastic curves,” ACM
Transactions on Graphics, vol. 40, no. 4. Association for Computing Machinery,
2021.
ista: Hafner C, Bickel B. 2021. The design space of plane elastic curves. ACM Transactions
on Graphics. 40(4), 126.
mla: Hafner, Christian, and Bernd Bickel. “The Design Space of Plane Elastic Curves.”
ACM Transactions on Graphics, vol. 40, no. 4, 126, Association for Computing
Machinery, 2021, doi:10.1145/3450626.3459800.
short: C. Hafner, B. Bickel, ACM Transactions on Graphics 40 (2021).
conference:
end_date: 2021-08-13
location: Virtual
name: 'SIGGRAF: Special Interest Group on Computer Graphics and Interactive Techniques'
start_date: 2021-08-09
date_created: 2021-08-08T22:01:26Z
date_published: 2021-07-19T00:00:00Z
date_updated: 2024-03-27T23:30:45Z
day: '19'
ddc:
- '516'
department:
- _id: BeBi
doi: 10.1145/3450626.3459800
ec_funded: 1
external_id:
isi:
- '000674930900091'
file:
- access_level: open_access
checksum: 7e5d08ce46b0451b3102eacd3d00f85f
content_type: application/pdf
creator: chafner
date_created: 2021-10-18T10:42:15Z
date_updated: 2021-10-18T10:42:15Z
file_id: '10150'
file_name: elastic-curves-paper.pdf
file_size: 17064290
relation: main_file
success: 1
- access_level: open_access
checksum: 0088643478be7c01a703b5b10767348f
content_type: application/pdf
creator: chafner
date_created: 2021-10-18T10:42:22Z
date_updated: 2021-10-18T10:42:22Z
file_id: '10151'
file_name: elastic-curves-supp.pdf
file_size: 547156
relation: supplementary_material
file_date_updated: 2021-10-18T10:42:22Z
has_accepted_license: '1'
intvolume: ' 40'
isi: 1
issue: '4'
keyword:
- Computing methodologies
- shape modeling
- modeling and simulation
- theory of computation
- computational geometry
- mathematics of computing
- mathematical optimization
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '07'
oa: 1
oa_version: Published Version
project:
- _id: 24F9549A-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '715767'
name: 'MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and
Modeling'
publication: ACM Transactions on Graphics
publication_identifier:
eissn:
- 1557-7368
issn:
- 0730-0301
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
related_material:
link:
- description: News on IST Website
relation: press_release
url: https://ist.ac.at/en/news/designing-with-elastic-structures/
record:
- id: '12897'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: The design space of plane elastic curves
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 40
year: '2021'
...
---
_id: '9208'
abstract:
- lang: eng
text: 'Bending-active structures are able to efficiently produce complex curved
shapes from flat panels. The desired deformation of the panels derives from the
proper selection of their elastic properties. Optimized panels, called FlexMaps,
are designed such that, once they are bent and assembled, the resulting static
equilibrium configuration matches a desired input 3D shape. The FlexMaps elastic
properties are controlled by locally varying spiraling geometric mesostructures,
which are optimized in size and shape to match specific bending requests, namely
the global curvature of the target shape. The design pipeline starts from a quad
mesh representing the input 3D shape, which defines the edge size and the total
amount of spirals: every quad will embed one spiral. Then, an optimization algorithm
tunes the geometry of the spirals by using a simplified pre-computed rod model.
This rod model is derived from a non-linear regression algorithm which approximates
the non-linear behavior of solid FEM spiral models subject to hundreds of load
combinations. This innovative pipeline has been applied to the project of a lightweight
plywood pavilion named FlexMaps Pavilion, which is a single-layer piecewise twisted
arch that fits a bounding box of 3.90x3.96x3.25 meters. This case study serves
to test the applicability of this methodology at the architectural scale. The
structure is validated via FE analyses and the fabrication of the full scale prototype.'
acknowledgement: 'The FlexMaps Pavilion has been awarded First Prize at the “Competition
and Exhibition of innovative lightweight structures” organized by the IASS Working
Group 21 within the FORM and FORCE, joint international conference of IASS Symposium
2019 and Structural Membranes 2019 (Barcelona, 7-11 October 2019) with the following
motivation: “for its structural innovation of bending-twisting system, connection
constructability and exquisite craftmanship”[20]. The authors would like to acknowledge
the Visual Computing Lab Staff of ISTI - CNR, in particular Thomas Alderighi, Marco
Callieri, Paolo Pingi; Antonio Rizzo of IPCF - CNR; and the Administrative Staff
of ISTI - CNR. This research was partially funded by the EU H2020 Programme EVOCATION:
Advanced Visual and Geometric Computing for 3D Capture, Display, and Fabrication
(grant no. 813170).'
article_number: '1505'
article_processing_charge: No
article_type: original
author:
- first_name: Francesco
full_name: Laccone, Francesco
last_name: Laccone
- first_name: Luigi
full_name: Malomo, Luigi
last_name: Malomo
- first_name: Jesus
full_name: Perez Rodriguez, Jesus
id: 2DC83906-F248-11E8-B48F-1D18A9856A87
last_name: Perez Rodriguez
- first_name: Nico
full_name: Pietroni, Nico
last_name: Pietroni
- first_name: Federico
full_name: Ponchio, Federico
last_name: Ponchio
- first_name: Bernd
full_name: Bickel, Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
- first_name: Paolo
full_name: Cignoni, Paolo
last_name: Cignoni
citation:
ama: 'Laccone F, Malomo L, Perez Rodriguez J, et al. A bending-active twisted-arch
plywood structure: Computational design and fabrication of the FlexMaps Pavilion.
SN Applied Sciences. 2020;2(9). doi:10.1007/s42452-020-03305-w'
apa: 'Laccone, F., Malomo, L., Perez Rodriguez, J., Pietroni, N., Ponchio, F., Bickel,
B., & Cignoni, P. (2020). A bending-active twisted-arch plywood structure:
Computational design and fabrication of the FlexMaps Pavilion. SN Applied Sciences.
Springer Nature. https://doi.org/10.1007/s42452-020-03305-w'
chicago: 'Laccone, Francesco, Luigi Malomo, Jesus Perez Rodriguez, Nico Pietroni,
Federico Ponchio, Bernd Bickel, and Paolo Cignoni. “A Bending-Active Twisted-Arch
Plywood Structure: Computational Design and Fabrication of the FlexMaps Pavilion.”
SN Applied Sciences. Springer Nature, 2020. https://doi.org/10.1007/s42452-020-03305-w.'
ieee: 'F. Laccone et al., “A bending-active twisted-arch plywood structure:
Computational design and fabrication of the FlexMaps Pavilion,” SN Applied
Sciences, vol. 2, no. 9. Springer Nature, 2020.'
ista: 'Laccone F, Malomo L, Perez Rodriguez J, Pietroni N, Ponchio F, Bickel B,
Cignoni P. 2020. A bending-active twisted-arch plywood structure: Computational
design and fabrication of the FlexMaps Pavilion. SN Applied Sciences. 2(9), 1505.'
mla: 'Laccone, Francesco, et al. “A Bending-Active Twisted-Arch Plywood Structure:
Computational Design and Fabrication of the FlexMaps Pavilion.” SN Applied
Sciences, vol. 2, no. 9, 1505, Springer Nature, 2020, doi:10.1007/s42452-020-03305-w.'
short: F. Laccone, L. Malomo, J. Perez Rodriguez, N. Pietroni, F. Ponchio, B. Bickel,
P. Cignoni, SN Applied Sciences 2 (2020).
date_created: 2021-02-28T23:01:25Z
date_published: 2020-09-01T00:00:00Z
date_updated: 2021-03-03T09:43:14Z
day: '01'
department:
- _id: BeBi
doi: 10.1007/s42452-020-03305-w
intvolume: ' 2'
issue: '9'
language:
- iso: eng
month: '09'
oa_version: None
publication: SN Applied Sciences
publication_identifier:
eissn:
- '25233971'
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'A bending-active twisted-arch plywood structure: Computational design and
fabrication of the FlexMaps Pavilion'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 2
year: '2020'
...
---
_id: '7220'
abstract:
- lang: eng
text: BACKGROUND:The introduction of image-guided methods to bypass surgery has
resulted in optimized preoperative identification of the recipients and excellent
patency rates. However, the recently presented methods have also been resource-consuming.
In the present study, we have reported a cost-efficient planning workflow for
extracranial-intracranial (EC-IC) revascularization combined with transdural indocyanine
green videoangiography (tICG-VA). METHODS:We performed a retrospective review
at a single tertiary referral center from 2011 to 2018. A novel software-derived
workflow was applied for 25 of 92 bypass procedures during the study period. The
precision and accuracy were assessed using tICG-VA identification of the cortical
recipients and a comparison of the virtual and actual data. The data from a control
group of 25 traditionally planned procedures were also matched. RESULTS:The intraoperative
transfer time of the calculated coordinates averaged 0.8 minute (range, 0.4-1.9
minutes). The definitive recipients matched the targeted branches in 80%, and
a neighboring branch was used in 16%. Our workflow led to a significant craniotomy
size reduction in the study group compared with that in the control group (P =
0.005). tICG-VA was successfully applied in 19 cases. An average of 2 potential
recipient arteries were identified transdurally, resulting in tailored durotomy
and 3 craniotomy adjustments. Follow-up patency results were available for 49
bypass surgeries, comprising 54 grafts. The overall patency rate was 91% at a
median follow-up period of 26 months. No significant difference was found in the
patency rate between the study and control groups (P = 0.317). CONCLUSIONS:Our
clinical results have validated the presented planning and surgical workflow and
support the routine implementation of tICG-VA for recipient identification before
durotomy.
article_processing_charge: No
article_type: original
author:
- first_name: Philippe
full_name: Dodier, Philippe
last_name: Dodier
- first_name: Thomas
full_name: Auzinger, Thomas
id: 4718F954-F248-11E8-B48F-1D18A9856A87
last_name: Auzinger
orcid: 0000-0002-1546-3265
- first_name: Gabriel
full_name: Mistelbauer, Gabriel
last_name: Mistelbauer
- first_name: Wei Te
full_name: Wang, Wei Te
last_name: Wang
- first_name: Heber
full_name: Ferraz-Leite, Heber
last_name: Ferraz-Leite
- first_name: Andreas
full_name: Gruber, Andreas
last_name: Gruber
- first_name: Wolfgang
full_name: Marik, Wolfgang
last_name: Marik
- first_name: Fabian
full_name: Winter, Fabian
last_name: Winter
- first_name: Gerrit
full_name: Fischer, Gerrit
last_name: Fischer
- first_name: Josa M.
full_name: Frischer, Josa M.
last_name: Frischer
- first_name: Gerhard
full_name: Bavinzski, Gerhard
last_name: Bavinzski
citation:
ama: Dodier P, Auzinger T, Mistelbauer G, et al. Novel software-derived workflow
in extracranial–intracranial bypass surgery validated by transdural indocyanine
green videoangiography. World Neurosurgery. 2020;134(2):e892-e902. doi:10.1016/j.wneu.2019.11.038
apa: Dodier, P., Auzinger, T., Mistelbauer, G., Wang, W. T., Ferraz-Leite, H., Gruber,
A., … Bavinzski, G. (2020). Novel software-derived workflow in extracranial–intracranial
bypass surgery validated by transdural indocyanine green videoangiography. World
Neurosurgery. Elsevier. https://doi.org/10.1016/j.wneu.2019.11.038
chicago: Dodier, Philippe, Thomas Auzinger, Gabriel Mistelbauer, Wei Te Wang, Heber
Ferraz-Leite, Andreas Gruber, Wolfgang Marik, et al. “Novel Software-Derived Workflow
in Extracranial–Intracranial Bypass Surgery Validated by Transdural Indocyanine
Green Videoangiography.” World Neurosurgery. Elsevier, 2020. https://doi.org/10.1016/j.wneu.2019.11.038.
ieee: P. Dodier et al., “Novel software-derived workflow in extracranial–intracranial
bypass surgery validated by transdural indocyanine green videoangiography,” World
Neurosurgery, vol. 134, no. 2. Elsevier, pp. e892–e902, 2020.
ista: Dodier P, Auzinger T, Mistelbauer G, Wang WT, Ferraz-Leite H, Gruber A, Marik
W, Winter F, Fischer G, Frischer JM, Bavinzski G. 2020. Novel software-derived
workflow in extracranial–intracranial bypass surgery validated by transdural indocyanine
green videoangiography. World Neurosurgery. 134(2), e892–e902.
mla: Dodier, Philippe, et al. “Novel Software-Derived Workflow in Extracranial–Intracranial
Bypass Surgery Validated by Transdural Indocyanine Green Videoangiography.” World
Neurosurgery, vol. 134, no. 2, Elsevier, 2020, pp. e892–902, doi:10.1016/j.wneu.2019.11.038.
short: P. Dodier, T. Auzinger, G. Mistelbauer, W.T. Wang, H. Ferraz-Leite, A. Gruber,
W. Marik, F. Winter, G. Fischer, J.M. Frischer, G. Bavinzski, World Neurosurgery
134 (2020) e892–e902.
date_created: 2019-12-29T23:00:48Z
date_published: 2020-02-01T00:00:00Z
date_updated: 2023-08-17T14:14:23Z
day: '01'
department:
- _id: BeBi
doi: 10.1016/j.wneu.2019.11.038
external_id:
isi:
- '000512878200104'
pmid:
- '31733380'
intvolume: ' 134'
isi: 1
issue: '2'
language:
- iso: eng
month: '02'
oa_version: None
page: e892-e902
pmid: 1
publication: World Neurosurgery
publication_identifier:
eissn:
- 1878-8769
issn:
- 1878-8750
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Novel software-derived workflow in extracranial–intracranial bypass surgery
validated by transdural indocyanine green videoangiography
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 134
year: '2020'
...
---
_id: '7218'
abstract:
- lang: eng
text: The combined resection of skull-infiltrating tumours and immediate cranioplastic
reconstruction predominantly relies on freehand-moulded solutions. Techniques
that enable this procedure to be performed easily in routine clinical practice
would be useful. A cadaveric study was developed in which a new software tool
was used to perform single-stage reconstructions with prefabricated implants after
the resection of skull-infiltrating pathologies. A novel 3D visualization and
interaction framework was developed to create 10 virtual craniotomies in five
cadaveric specimens. Polyether ether ketone (PEEK) implants were manufactured
according to the bone defects. The image-guided craniotomy was reconstructed with
PEEK and compared to polymethyl methacrylate (PMMA). Navigational accuracy and
surgical precision were assessed. The PEEK workflow resulted in up to 10-fold
shorter reconstruction times than the standard technique. Surgical precision was
reflected by the mean 1.1 ± 0.29 mm distance between the virtual and real craniotomy,
with submillimetre precision in 50%. Assessment of the global offset between virtual
and actual craniotomy revealed an average shift of 4.5 ± 3.6 mm. The results validated
the ‘elective single-stage cranioplasty’ technique as a state-of-the-art virtual
planning method and surgical workflow. This patient-tailored workflow could significantly
reduce surgical times compared to the traditional, intraoperative acrylic moulding
method and may be an option for the reconstruction of bone defects in the craniofacial
region.
article_processing_charge: No
article_type: original
author:
- first_name: Philippe
full_name: Dodier, Philippe
last_name: Dodier
- first_name: Fabian
full_name: Winter, Fabian
last_name: Winter
- first_name: Thomas
full_name: Auzinger, Thomas
id: 4718F954-F248-11E8-B48F-1D18A9856A87
last_name: Auzinger
orcid: 0000-0002-1546-3265
- first_name: Gabriel
full_name: Mistelbauer, Gabriel
last_name: Mistelbauer
- first_name: Josa M.
full_name: Frischer, Josa M.
last_name: Frischer
- first_name: Wei Te
full_name: Wang, Wei Te
last_name: Wang
- first_name: Ammar
full_name: Mallouhi, Ammar
last_name: Mallouhi
- first_name: Wolfgang
full_name: Marik, Wolfgang
last_name: Marik
- first_name: Stefan
full_name: Wolfsberger, Stefan
last_name: Wolfsberger
- first_name: Lukas
full_name: Reissig, Lukas
last_name: Reissig
- first_name: Firas
full_name: Hammadi, Firas
last_name: Hammadi
- first_name: Christian
full_name: Matula, Christian
last_name: Matula
- first_name: Arnulf
full_name: Baumann, Arnulf
last_name: Baumann
- first_name: Gerhard
full_name: Bavinzski, Gerhard
last_name: Bavinzski
citation:
ama: 'Dodier P, Winter F, Auzinger T, et al. Single-stage bone resection and cranioplastic
reconstruction: Comparison of a novel software-derived PEEK workflow with the
standard reconstructive method. International Journal of Oral and Maxillofacial
Surgery. 2020;49(8):P1007-1015. doi:10.1016/j.ijom.2019.11.011'
apa: 'Dodier, P., Winter, F., Auzinger, T., Mistelbauer, G., Frischer, J. M., Wang,
W. T., … Bavinzski, G. (2020). Single-stage bone resection and cranioplastic reconstruction:
Comparison of a novel software-derived PEEK workflow with the standard reconstructive
method. International Journal of Oral and Maxillofacial Surgery. Elsevier.
https://doi.org/10.1016/j.ijom.2019.11.011'
chicago: 'Dodier, Philippe, Fabian Winter, Thomas Auzinger, Gabriel Mistelbauer,
Josa M. Frischer, Wei Te Wang, Ammar Mallouhi, et al. “Single-Stage Bone Resection
and Cranioplastic Reconstruction: Comparison of a Novel Software-Derived PEEK
Workflow with the Standard Reconstructive Method.” International Journal of
Oral and Maxillofacial Surgery. Elsevier, 2020. https://doi.org/10.1016/j.ijom.2019.11.011.'
ieee: 'P. Dodier et al., “Single-stage bone resection and cranioplastic reconstruction:
Comparison of a novel software-derived PEEK workflow with the standard reconstructive
method,” International Journal of Oral and Maxillofacial Surgery, vol.
49, no. 8. Elsevier, pp. P1007-1015, 2020.'
ista: 'Dodier P, Winter F, Auzinger T, Mistelbauer G, Frischer JM, Wang WT, Mallouhi
A, Marik W, Wolfsberger S, Reissig L, Hammadi F, Matula C, Baumann A, Bavinzski
G. 2020. Single-stage bone resection and cranioplastic reconstruction: Comparison
of a novel software-derived PEEK workflow with the standard reconstructive method.
International Journal of Oral and Maxillofacial Surgery. 49(8), P1007-1015.'
mla: 'Dodier, Philippe, et al. “Single-Stage Bone Resection and Cranioplastic Reconstruction:
Comparison of a Novel Software-Derived PEEK Workflow with the Standard Reconstructive
Method.” International Journal of Oral and Maxillofacial Surgery, vol.
49, no. 8, Elsevier, 2020, pp. P1007-1015, doi:10.1016/j.ijom.2019.11.011.'
short: P. Dodier, F. Winter, T. Auzinger, G. Mistelbauer, J.M. Frischer, W.T. Wang,
A. Mallouhi, W. Marik, S. Wolfsberger, L. Reissig, F. Hammadi, C. Matula, A. Baumann,
G. Bavinzski, International Journal of Oral and Maxillofacial Surgery 49 (2020)
P1007-1015.
date_created: 2019-12-29T23:00:47Z
date_published: 2020-08-01T00:00:00Z
date_updated: 2023-08-17T14:15:22Z
day: '01'
department:
- _id: BeBi
doi: 10.1016/j.ijom.2019.11.011
external_id:
isi:
- '000556819800005'
pmid:
- '31866145'
intvolume: ' 49'
isi: 1
issue: '8'
language:
- iso: eng
month: '08'
oa_version: None
page: P1007-1015
pmid: 1
publication: International Journal of Oral and Maxillofacial Surgery
publication_identifier:
eissn:
- 1399-0020
issn:
- 0901-5027
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Single-stage bone resection and cranioplastic reconstruction: Comparison of
a novel software-derived PEEK workflow with the standard reconstructive method'
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 49
year: '2020'
...
---
_id: '8386'
abstract:
- lang: eng
text: "Form versus function is a long-standing debate in various design-related
fields, such as architecture as well as graphic and industrial design. A good
design that balances form and function often requires considerable human effort
and collaboration among experts from different professional fields. Computational
design tools provide a new paradigm for designing functional objects. In computational
design, form and function are represented as mathematical\r\nquantities, with
the help of numerical and combinatorial algorithms, they can assist even novice
users in designing versatile models that exhibit their desired functionality.
This thesis presents three disparate research studies on the computational design
of functional objects: The appearance of 3d print—we optimize the volumetric material
distribution for faithfully replicating colored surface texture in 3d printing;
the dynamic motion of mechanical structures—\r\nour design system helps the novice
user to retarget various mechanical templates with different functionality to
complex 3d shapes; and a more abstract functionality, multistability—our algorithm
automatically generates models that exhibit multiple stable target poses. For
each of these cases, our computational design tools not only ensure the functionality
of the results but also permit the user aesthetic freedom over the form. Moreover,
fabrication constraints\r\nwere taken into account, which allow for the immediate
creation of physical realization via 3D printing or laser cutting."
acknowledged_ssus:
- _id: SSU
acknowledgement: The research in this thesis has received funding from the European
Union’s Horizon 2020 research and innovation programme, under the Marie Skłodowska-Curie
grant agreement No 642841 (DISTRO) and the European Research Council grant agreement
No 715767 (MATERIALIZABLE). All the research projects in this thesis were also supported
by Scientific Service Units (SSUs) at IST Austria.
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Ran
full_name: Zhang, Ran
id: 4DDBCEB0-F248-11E8-B48F-1D18A9856A87
last_name: Zhang
orcid: 0000-0002-3808-281X
citation:
ama: Zhang R. Structure-aware computational design and its application to 3D printable
volume scattering, mechanism, and multistability. 2020. doi:10.15479/AT:ISTA:8386
apa: Zhang, R. (2020). Structure-aware computational design and its application
to 3D printable volume scattering, mechanism, and multistability. Institute
of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:8386
chicago: Zhang, Ran. “Structure-Aware Computational Design and Its Application to
3D Printable Volume Scattering, Mechanism, and Multistability.” Institute of Science
and Technology Austria, 2020. https://doi.org/10.15479/AT:ISTA:8386.
ieee: R. Zhang, “Structure-aware computational design and its application to 3D
printable volume scattering, mechanism, and multistability,” Institute of Science
and Technology Austria, 2020.
ista: Zhang R. 2020. Structure-aware computational design and its application to
3D printable volume scattering, mechanism, and multistability. Institute of Science
and Technology Austria.
mla: Zhang, Ran. Structure-Aware Computational Design and Its Application to
3D Printable Volume Scattering, Mechanism, and Multistability. Institute of
Science and Technology Austria, 2020, doi:10.15479/AT:ISTA:8386.
short: R. Zhang, Structure-Aware Computational Design and Its Application to 3D
Printable Volume Scattering, Mechanism, and Multistability, Institute of Science
and Technology Austria, 2020.
date_created: 2020-09-14T01:04:53Z
date_published: 2020-09-14T00:00:00Z
date_updated: 2023-09-22T09:49:31Z
day: '14'
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degree_awarded: PhD
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ec_funded: 1
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oa: 1
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project:
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call_identifier: H2020
grant_number: '642841'
name: Distributed 3D Object Design
- _id: 24F9549A-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '715767'
name: 'MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and
Modeling'
publication_identifier:
issn:
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publisher: Institute of Science and Technology Austria
related_material:
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relation: part_of_dissertation
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status: public
supervisor:
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full_name: Bickel, Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
title: Structure-aware computational design and its application to 3D printable volume
scattering, mechanism, and multistability
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2020'
...
---
_id: '8366'
abstract:
- lang: eng
text: "Fabrication of curved shells plays an important role in modern design, industry,
and science. Among their remarkable properties are, for example, aesthetics of
organic shapes, ability to evenly distribute loads, or efficient flow separation.
They find applications across vast length scales ranging from sky-scraper architecture
to microscopic devices. But, at\r\nthe same time, the design of curved shells
and their manufacturing process pose a variety of challenges. In this thesis,
they are addressed from several perspectives. In particular, this thesis presents
approaches based on the transformation of initially flat sheets into the target
curved surfaces. This involves problems of interactive design of shells with nontrivial
mechanical constraints, inverse design of complex structural materials, and data-driven
modeling of delicate and time-dependent physical properties. At the same time,
two newly-developed self-morphing mechanisms targeting flat-to-curved transformation
are presented.\r\nIn architecture, doubly curved surfaces can be realized as cold
bent glass panelizations. Originally flat glass panels are bent into frames and
remain stressed. This is a cost-efficient fabrication approach compared to hot
bending, when glass panels are shaped plastically. However such constructions
are prone to breaking during bending, and it is highly\r\nnontrivial to navigate
the design space, keeping the panels fabricable and aesthetically pleasing at
the same time. We introduce an interactive design system for cold bent glass façades,
while previously even offline optimization for such scenarios has not been sufficiently
developed. Our method is based on a deep learning approach providing quick\r\nand
high precision estimation of glass panel shape and stress while handling the shape\r\nmultimodality.\r\nFabrication
of smaller objects of scales below 1 m, can also greatly benefit from shaping
originally flat sheets. In this respect, we designed new self-morphing shell mechanisms
transforming from an initial flat state to a doubly curved state with high precision
and detail. Our so-called CurveUps demonstrate the encodement of the geometric
information\r\ninto the shell. Furthermore, we explored the frontiers of programmable
materials and showed how temporal information can additionally be encoded into
a flat shell. This allows prescribing deformation sequences for doubly curved
surfaces and, thus, facilitates self-collision avoidance enabling complex shapes
and functionalities otherwise impossible.\r\nBoth of these methods include inverse
design tools keeping the user in the design loop."
acknowledged_ssus:
- _id: M-Shop
- _id: ScienComp
acknowledgement: "During the work on this thesis, I received substantial support from
IST Austria’s scientific service units. A big thank you to Todor Asenov and other
Miba Machine Shop team members for their help with fabrication of experimental prototypes.
In addition, I would like to thank Scientific Computing team for the support with
high performance computing.\r\nFinancial support was provided by the European Research
Council (ERC) under grant agreement No 715767 - MATERIALIZABLE: Intelligent fabrication-oriented
Computational Design and Modeling, which I gratefully acknowledge."
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Ruslan
full_name: Guseinov, Ruslan
id: 3AB45EE2-F248-11E8-B48F-1D18A9856A87
last_name: Guseinov
orcid: 0000-0001-9819-5077
citation:
ama: 'Guseinov R. Computational design of curved thin shells: From glass façades
to programmable matter. 2020. doi:10.15479/AT:ISTA:8366'
apa: 'Guseinov, R. (2020). Computational design of curved thin shells: From glass
façades to programmable matter. Institute of Science and Technology Austria.
https://doi.org/10.15479/AT:ISTA:8366'
chicago: 'Guseinov, Ruslan. “Computational Design of Curved Thin Shells: From Glass
Façades to Programmable Matter.” Institute of Science and Technology Austria,
2020. https://doi.org/10.15479/AT:ISTA:8366.'
ieee: 'R. Guseinov, “Computational design of curved thin shells: From glass façades
to programmable matter,” Institute of Science and Technology Austria, 2020.'
ista: 'Guseinov R. 2020. Computational design of curved thin shells: From glass
façades to programmable matter. Institute of Science and Technology Austria.'
mla: 'Guseinov, Ruslan. Computational Design of Curved Thin Shells: From Glass
Façades to Programmable Matter. Institute of Science and Technology Austria,
2020, doi:10.15479/AT:ISTA:8366.'
short: 'R. Guseinov, Computational Design of Curved Thin Shells: From Glass Façades
to Programmable Matter, Institute of Science and Technology Austria, 2020.'
date_created: 2020-09-10T16:19:55Z
date_published: 2020-09-21T00:00:00Z
date_updated: 2024-02-21T12:44:29Z
day: '21'
ddc:
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degree_awarded: PhD
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keyword:
- computer-aided design
- shape modeling
- self-morphing
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- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: '118'
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grant_number: '715767'
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isbn:
- 978-3-99078-010-7
issn:
- 2663-337X
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publisher: Institute of Science and Technology Austria
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full_name: Bickel, Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
title: 'Computational design of curved thin shells: From glass façades to programmable
matter'
type: dissertation
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
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...
---
_id: '8562'
abstract:
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text: "Cold bent glass is a promising and cost-efficient method for realizing doubly
curved glass facades. They are produced by attaching planar glass sheets to curved
frames and require keeping the occurring stress within safe limits.\r\nHowever,
it is very challenging to navigate the design space of cold bent glass panels
due to the fragility of the material, which impedes the form-finding for practically
feasible and aesthetically pleasing cold bent glass facades. We propose an interactive,
data-driven approach for designing cold bent glass facades that can be seamlessly
integrated into a typical architectural design pipeline. Our method allows non-expert
users to interactively edit a parametric surface while providing real-time feedback
on the deformed shape and maximum stress of cold bent glass panels. Designs are
automatically refined to minimize several fairness criteria while maximal stresses
are kept within glass limits. We achieve interactive frame rates by using a differentiable
Mixture Density Network trained from more than a million simulations. Given a
curved boundary, our regression model is capable of handling multistable\r\nconfigurations
and accurately predicting the equilibrium shape of the panel and its corresponding
maximal stress. We show predictions are highly accurate and validate our results
with a physical realization of a cold bent glass surface."
acknowledged_ssus:
- _id: ScienComp
acknowledgement: "We thank IST Austria’s Scientific Computing team for their support,
Corinna Datsiou and Sophie Pennetier for their expert input on the practical applications
of cold bent glass, and Zaha Hadid Architects and Waagner Biro for providing the
architectural datasets. Photo of Fondation Louis Vuitton by Francisco Anzola / CC
BY 2.0 / cropped.\r\nPhoto of Opus by Danica O. Kus. This project has received funding
from the European Union’s\r\nHorizon 2020 research and innovation program under
grant agreement No 675789 - Algebraic Representations in Computer-Aided Design for
complEx Shapes (ARCADES), from the European Research Council (ERC) under grant agreement
No 715767 - MATERIALIZABLE: Intelligent fabrication-oriented Computational Design
and Modeling, and SFB-Transregio “Discretization in Geometry and Dynamics” through
grant I 2978 of the Austrian Science Fund (FWF). F. Rist and K. Gavriil have been
partially supported by KAUST baseline funding."
article_number: '208'
article_processing_charge: No
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author:
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full_name: Gavriil, Konstantinos
last_name: Gavriil
- first_name: Ruslan
full_name: Guseinov, Ruslan
id: 3AB45EE2-F248-11E8-B48F-1D18A9856A87
last_name: Guseinov
orcid: 0000-0001-9819-5077
- first_name: Jesus
full_name: Perez Rodriguez, Jesus
id: 2DC83906-F248-11E8-B48F-1D18A9856A87
last_name: Perez Rodriguez
- first_name: Davide
full_name: Pellis, Davide
last_name: Pellis
- first_name: Paul M
full_name: Henderson, Paul M
id: 13C09E74-18D9-11E9-8878-32CFE5697425
last_name: Henderson
orcid: 0000-0002-5198-7445
- first_name: Florian
full_name: Rist, Florian
last_name: Rist
- first_name: Helmut
full_name: Pottmann, Helmut
last_name: Pottmann
- first_name: Bernd
full_name: Bickel, Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
citation:
ama: Gavriil K, Guseinov R, Perez Rodriguez J, et al. Computational design of cold
bent glass façades. ACM Transactions on Graphics. 2020;39(6). doi:10.1145/3414685.3417843
apa: Gavriil, K., Guseinov, R., Perez Rodriguez, J., Pellis, D., Henderson, P. M.,
Rist, F., … Bickel, B. (2020). Computational design of cold bent glass façades.
ACM Transactions on Graphics. Association for Computing Machinery. https://doi.org/10.1145/3414685.3417843
chicago: Gavriil, Konstantinos, Ruslan Guseinov, Jesus Perez Rodriguez, Davide Pellis,
Paul M Henderson, Florian Rist, Helmut Pottmann, and Bernd Bickel. “Computational
Design of Cold Bent Glass Façades.” ACM Transactions on Graphics. Association
for Computing Machinery, 2020. https://doi.org/10.1145/3414685.3417843.
ieee: K. Gavriil et al., “Computational design of cold bent glass façades,”
ACM Transactions on Graphics, vol. 39, no. 6. Association for Computing
Machinery, 2020.
ista: Gavriil K, Guseinov R, Perez Rodriguez J, Pellis D, Henderson PM, Rist F,
Pottmann H, Bickel B. 2020. Computational design of cold bent glass façades. ACM
Transactions on Graphics. 39(6), 208.
mla: Gavriil, Konstantinos, et al. “Computational Design of Cold Bent Glass Façades.”
ACM Transactions on Graphics, vol. 39, no. 6, 208, Association for Computing
Machinery, 2020, doi:10.1145/3414685.3417843.
short: K. Gavriil, R. Guseinov, J. Perez Rodriguez, D. Pellis, P.M. Henderson, F.
Rist, H. Pottmann, B. Bickel, ACM Transactions on Graphics 39 (2020).
date_created: 2020-09-23T11:30:02Z
date_published: 2020-11-26T00:00:00Z
date_updated: 2024-02-21T12:43:21Z
day: '26'
ddc:
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department:
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doi: 10.1145/3414685.3417843
ec_funded: 1
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name: 'MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and
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publication_identifier:
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relation: press_release
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title: Computational design of cold bent glass façades
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volume: 39
year: '2020'
...
---
_id: '8375'
abstract:
- lang: eng
text: 'Supplementary movies showing the following sequences for spatio-temporarily
programmed shells: input geometry and actuation time landscape; comparison of
morphing processes from a camera recording and a simulation; final actuated shape.'
article_processing_charge: No
author:
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apa: 'Guseinov, R. (2020). Supplementary data for “Computational design of curved
thin shells: from glass façades to programmable matter.” Institute of Science
and Technology Austria. https://doi.org/10.15479/AT:ISTA:8375'
chicago: 'Guseinov, Ruslan. “Supplementary Data for ‘Computational Design of Curved
Thin Shells: From Glass Façades to Programmable Matter.’” Institute of Science
and Technology Austria, 2020. https://doi.org/10.15479/AT:ISTA:8375.'
ieee: 'R. Guseinov, “Supplementary data for ‘Computational design of curved thin
shells: from glass façades to programmable matter.’” Institute of Science and
Technology Austria, 2020.'
ista: 'Guseinov R. 2020. Supplementary data for ‘Computational design of curved
thin shells: from glass façades to programmable matter’, Institute of Science
and Technology Austria, 10.15479/AT:ISTA:8375.'
mla: 'Guseinov, Ruslan. Supplementary Data for “Computational Design of Curved
Thin Shells: From Glass Façades to Programmable Matter.” Institute of Science
and Technology Austria, 2020, doi:10.15479/AT:ISTA:8375.'
short: R. Guseinov, (2020).
contributor:
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first_name: Ruslan
id: 3AB45EE2-F248-11E8-B48F-1D18A9856A87
last_name: Guseinov
orcid: 0000-0001-9819-5077
- contributor_type: researcher
first_name: Connor
last_name: McMahan
- contributor_type: researcher
first_name: Jesus
id: 2DC83906-F248-11E8-B48F-1D18A9856A87
last_name: Perez Rodriguez
- contributor_type: researcher
first_name: Chiara
last_name: Daraio
- contributor_type: researcher
first_name: Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
date_created: 2020-09-11T09:52:54Z
date_published: 2020-09-21T00:00:00Z
date_updated: 2024-02-21T12:44:29Z
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department:
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orcid: 0000-0001-9819-5077
citation:
ama: Guseinov R. Supplementary data for “Computational design of cold bent glass
façades.” 2020. doi:10.15479/AT:ISTA:8761
apa: Guseinov, R. (2020). Supplementary data for “Computational design of cold bent
glass façades.” Institute of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:8761
chicago: Guseinov, Ruslan. “Supplementary Data for ‘Computational Design of Cold
Bent Glass Façades.’” Institute of Science and Technology Austria, 2020. https://doi.org/10.15479/AT:ISTA:8761.
ieee: R. Guseinov, “Supplementary data for ‘Computational design of cold bent glass
façades.’” Institute of Science and Technology Austria, 2020.
ista: Guseinov R. 2020. Supplementary data for ‘Computational design of cold bent
glass façades’, Institute of Science and Technology Austria, 10.15479/AT:ISTA:8761.
mla: Guseinov, Ruslan. Supplementary Data for “Computational Design of Cold Bent
Glass Façades.” Institute of Science and Technology Austria, 2020, doi:10.15479/AT:ISTA:8761.
short: R. Guseinov, (2020).
contributor:
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first_name: Konstantinos
last_name: Gavriil
- contributor_type: researcher
first_name: Ruslan
id: 3AB45EE2-F248-11E8-B48F-1D18A9856A87
last_name: Guseinov
orcid: 0000-0001-9819-5077
- contributor_type: researcher
first_name: Jesus
id: 2DC83906-F248-11E8-B48F-1D18A9856A87
last_name: Perez Rodriguez
- contributor_type: researcher
first_name: Davide
last_name: Pellis
- contributor_type: researcher
first_name: Paul M
id: 13C09E74-18D9-11E9-8878-32CFE5697425
last_name: Henderson
orcid: 0000-0002-5198-7445
- contributor_type: researcher
first_name: Florian
last_name: Rist
- contributor_type: researcher
first_name: Helmut
last_name: Pottmann
- contributor_type: researcher
first_name: Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
date_created: 2020-11-16T10:47:18Z
date_published: 2020-11-23T00:00:00Z
date_updated: 2024-02-21T12:43:22Z
day: '23'
ddc:
- '000'
department:
- _id: BeBi
doi: 10.15479/AT:ISTA:8761
ec_funded: 1
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date_created: 2020-11-18T10:04:59Z
date_updated: 2020-11-18T10:04:59Z
file_id: '8770'
file_name: readme.txt
file_size: 1228
relation: main_file
success: 1
file_date_updated: 2020-11-18T10:04:59Z
has_accepted_license: '1'
month: '11'
oa: 1
oa_version: Published Version
project:
- _id: 24F9549A-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '715767'
name: 'MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and
Modeling'
publisher: Institute of Science and Technology Austria
related_material:
link:
- relation: software
url: https://github.com/russelmann/cold-glass-acm
record:
- id: '8562'
relation: used_in_publication
status: public
status: public
title: Supplementary data for "Computational design of cold bent glass façades"
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: research_data
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2020'
...
---
_id: '7262'
abstract:
- lang: eng
text: Advances in shape-morphing materials, such as hydrogels, shape-memory polymers
and light-responsive polymers have enabled prescribing self-directed deformations
of initially flat geometries. However, most proposed solutions evolve towards
a target geometry without considering time-dependent actuation paths. To achieve
more complex geometries and avoid self-collisions, it is critical to encode a
spatial and temporal shape evolution within the initially flat shell. Recent realizations
of time-dependent morphing are limited to the actuation of few, discrete hinges
and cannot form doubly curved surfaces. Here, we demonstrate a method for encoding
temporal shape evolution in architected shells that assume complex shapes and
doubly curved geometries. The shells are non-periodic tessellations of pre-stressed
contractile unit cells that soften in water at rates prescribed locally by mesostructure
geometry. The ensuing midplane contraction is coupled to the formation of encoded
curvatures. We propose an inverse design tool based on a data-driven model for
unit cells’ temporal responses.
article_number: '237'
article_processing_charge: No
article_type: original
author:
- first_name: Ruslan
full_name: Guseinov, Ruslan
id: 3AB45EE2-F248-11E8-B48F-1D18A9856A87
last_name: Guseinov
orcid: 0000-0001-9819-5077
- first_name: Connor
full_name: McMahan, Connor
last_name: McMahan
- first_name: Jesus
full_name: Perez Rodriguez, Jesus
id: 2DC83906-F248-11E8-B48F-1D18A9856A87
last_name: Perez Rodriguez
- first_name: Chiara
full_name: Daraio, Chiara
last_name: Daraio
- first_name: Bernd
full_name: Bickel, Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
citation:
ama: Guseinov R, McMahan C, Perez Rodriguez J, Daraio C, Bickel B. Programming temporal
morphing of self-actuated shells. Nature Communications. 2020;11. doi:10.1038/s41467-019-14015-2
apa: Guseinov, R., McMahan, C., Perez Rodriguez, J., Daraio, C., & Bickel, B.
(2020). Programming temporal morphing of self-actuated shells. Nature Communications.
Springer Nature. https://doi.org/10.1038/s41467-019-14015-2
chicago: Guseinov, Ruslan, Connor McMahan, Jesus Perez Rodriguez, Chiara Daraio,
and Bernd Bickel. “Programming Temporal Morphing of Self-Actuated Shells.” Nature
Communications. Springer Nature, 2020. https://doi.org/10.1038/s41467-019-14015-2.
ieee: R. Guseinov, C. McMahan, J. Perez Rodriguez, C. Daraio, and B. Bickel, “Programming
temporal morphing of self-actuated shells,” Nature Communications, vol.
11. Springer Nature, 2020.
ista: Guseinov R, McMahan C, Perez Rodriguez J, Daraio C, Bickel B. 2020. Programming
temporal morphing of self-actuated shells. Nature Communications. 11, 237.
mla: Guseinov, Ruslan, et al. “Programming Temporal Morphing of Self-Actuated Shells.”
Nature Communications, vol. 11, 237, Springer Nature, 2020, doi:10.1038/s41467-019-14015-2.
short: R. Guseinov, C. McMahan, J. Perez Rodriguez, C. Daraio, B. Bickel, Nature
Communications 11 (2020).
date_created: 2020-01-13T16:54:26Z
date_published: 2020-01-13T00:00:00Z
date_updated: 2024-02-21T12:45:02Z
day: '13'
ddc:
- '000'
department:
- _id: BeBi
doi: 10.1038/s41467-019-14015-2
ec_funded: 1
external_id:
isi:
- '000511916800015'
file:
- access_level: open_access
checksum: 7db23fef2f4cda712f17f1004116ddff
content_type: application/pdf
creator: rguseino
date_created: 2020-01-15T14:35:34Z
date_updated: 2020-07-14T12:47:55Z
file_id: '7336'
file_name: 2020_NatureComm_Guseinov.pdf
file_size: 1315270
relation: main_file
file_date_updated: 2020-07-14T12:47:55Z
has_accepted_license: '1'
intvolume: ' 11'
isi: 1
keyword:
- Design
- Synthesis and processing
- Mechanical engineering
- Polymers
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
- _id: 24F9549A-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '715767'
name: 'MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and
Modeling'
publication: Nature Communications
publication_identifier:
issn:
- 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
link:
- description: News on IST Homepage
relation: press_release
url: https://ist.ac.at/en/news/geometry-meets-time/
record:
- id: '8366'
relation: dissertation_contains
status: public
- id: '7154'
relation: research_data
status: public
scopus_import: '1'
status: public
title: Programming temporal morphing of self-actuated shells
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 11
year: '2020'
...
---
_id: '8766'
abstract:
- lang: eng
text: "The “procedural” approach to animating ocean waves is the dominant algorithm
for animating larger bodies of water in\r\ninteractive applications as well as
in off-line productions — it provides high visual quality with a low computational
demand. In this paper, we widen the applicability of procedural water wave animation
with an extension that guarantees the satisfaction of boundary conditions imposed
by terrain while still approximating physical wave behavior. In combination with
a particle system that models wave breaking, foam, and spray, this allows us to
naturally model waves interacting with beaches and rocks. Our system is able to
animate waves at large scales at interactive frame rates on a commodity PC."
article_processing_charge: No
article_type: original
author:
- first_name: Stefan
full_name: Jeschke, Stefan
id: 44D6411A-F248-11E8-B48F-1D18A9856A87
last_name: Jeschke
- first_name: Christian
full_name: Hafner, Christian
id: 400429CC-F248-11E8-B48F-1D18A9856A87
last_name: Hafner
- first_name: Nuttapong
full_name: Chentanez, Nuttapong
last_name: Chentanez
- first_name: Miles
full_name: Macklin, Miles
last_name: Macklin
- first_name: Matthias
full_name: Müller-Fischer, Matthias
last_name: Müller-Fischer
- first_name: Christopher J
full_name: Wojtan, Christopher J
id: 3C61F1D2-F248-11E8-B48F-1D18A9856A87
last_name: Wojtan
orcid: 0000-0001-6646-5546
citation:
ama: Jeschke S, Hafner C, Chentanez N, Macklin M, Müller-Fischer M, Wojtan C. Making
procedural water waves boundary-aware. Computer Graphics forum. 2020;39(8):47-54.
doi:10.1111/cgf.14100
apa: 'Jeschke, S., Hafner, C., Chentanez, N., Macklin, M., Müller-Fischer, M., &
Wojtan, C. (2020). Making procedural water waves boundary-aware. Computer Graphics
Forum. Online Symposium: Wiley. https://doi.org/10.1111/cgf.14100'
chicago: Jeschke, Stefan, Christian Hafner, Nuttapong Chentanez, Miles Macklin,
Matthias Müller-Fischer, and Chris Wojtan. “Making Procedural Water Waves Boundary-Aware.”
Computer Graphics Forum. Wiley, 2020. https://doi.org/10.1111/cgf.14100.
ieee: S. Jeschke, C. Hafner, N. Chentanez, M. Macklin, M. Müller-Fischer, and C.
Wojtan, “Making procedural water waves boundary-aware,” Computer Graphics forum,
vol. 39, no. 8. Wiley, pp. 47–54, 2020.
ista: Jeschke S, Hafner C, Chentanez N, Macklin M, Müller-Fischer M, Wojtan C. 2020.
Making procedural water waves boundary-aware. Computer Graphics forum. 39(8),
47–54.
mla: Jeschke, Stefan, et al. “Making Procedural Water Waves Boundary-Aware.” Computer
Graphics Forum, vol. 39, no. 8, Wiley, 2020, pp. 47–54, doi:10.1111/cgf.14100.
short: S. Jeschke, C. Hafner, N. Chentanez, M. Macklin, M. Müller-Fischer, C. Wojtan,
Computer Graphics Forum 39 (2020) 47–54.
conference:
end_date: 2020-10-09
location: Online Symposium
name: 'SCA: Symposium on Computer Animation'
start_date: 2020-10-06
date_created: 2020-11-17T10:47:48Z
date_published: 2020-12-01T00:00:00Z
date_updated: 2024-02-28T13:58:11Z
day: '01'
department:
- _id: ChWo
- _id: BeBi
doi: 10.1111/cgf.14100
ec_funded: 1
external_id:
isi:
- '000591780400005'
intvolume: ' 39'
isi: 1
issue: '8'
language:
- iso: eng
month: '12'
oa_version: None
page: 47-54
project:
- _id: 2533E772-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '638176'
name: Efficient Simulation of Natural Phenomena at Extremely Large Scales
- _id: 24F9549A-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '715767'
name: 'MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and
Modeling'
publication: Computer Graphics forum
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Making procedural water waves boundary-aware
type: journal_article
user_id: 2EBD1598-F248-11E8-B48F-1D18A9856A87
volume: 39
year: '2020'
...
---
_id: '6660'
abstract:
- lang: eng
text: "Commercially available full-color 3D printing allows for detailed control
of material deposition in a volume, but an exact reproduction of a target surface
appearance is hampered by the strong subsurface scattering that causes nontrivial
volumetric cross-talk at the print surface. Previous work showed how an iterative
optimization scheme based on accumulating absorptive materials at the surface
can be used to find a volumetric distribution of print materials that closely
approximates a given target appearance.\r\n\r\nIn this work, we first revisit
the assumption that pushing the absorptive materials to the surface results in
minimal volumetric cross-talk. We design a full-fledged optimization on a small
domain for this task and confirm this previously reported heuristic. Then, we
extend the above approach that is critically limited to color reproduction on
planar surfaces, to arbitrary 3D shapes. Our method enables high-fidelity color
texture reproduction on 3D prints by effectively compensating for internal light
scattering within arbitrarily shaped objects. In addition, we propose a content-aware
gamut mapping that significantly improves color reproduction for the pathological
case of thin geometric features. Using a wide range of sample objects with complex
textures and geometries, we demonstrate color reproduction whose fidelity is superior
to state-of-the-art drivers for color 3D printers."
article_number: '111'
article_processing_charge: No
author:
- first_name: Denis
full_name: Sumin, Denis
last_name: Sumin
- first_name: Tim
full_name: Weyrich, Tim
last_name: Weyrich
- first_name: Tobias
full_name: Rittig, Tobias
last_name: Rittig
- first_name: Vahid
full_name: Babaei, Vahid
last_name: Babaei
- first_name: Thomas
full_name: Nindel, Thomas
last_name: Nindel
- first_name: Alexander
full_name: Wilkie, Alexander
last_name: Wilkie
- first_name: Piotr
full_name: Didyk, Piotr
last_name: Didyk
- first_name: Bernd
full_name: Bickel, Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
- first_name: Jaroslav
full_name: Křivánek, Jaroslav
last_name: Křivánek
- first_name: Karol
full_name: Myszkowski, Karol
last_name: Myszkowski
citation:
ama: Sumin D, Weyrich T, Rittig T, et al. Geometry-aware scattering compensation
for 3D printing. ACM Transactions on Graphics. 2019;38(4). doi:10.1145/3306346.3322992
apa: Sumin, D., Weyrich, T., Rittig, T., Babaei, V., Nindel, T., Wilkie, A., … Myszkowski,
K. (2019). Geometry-aware scattering compensation for 3D printing. ACM Transactions
on Graphics. ACM. https://doi.org/10.1145/3306346.3322992
chicago: Sumin, Denis, Tim Weyrich, Tobias Rittig, Vahid Babaei, Thomas Nindel,
Alexander Wilkie, Piotr Didyk, Bernd Bickel, Jaroslav Křivánek, and Karol Myszkowski.
“Geometry-Aware Scattering Compensation for 3D Printing.” ACM Transactions
on Graphics. ACM, 2019. https://doi.org/10.1145/3306346.3322992.
ieee: D. Sumin et al., “Geometry-aware scattering compensation for 3D printing,”
ACM Transactions on Graphics, vol. 38, no. 4. ACM, 2019.
ista: Sumin D, Weyrich T, Rittig T, Babaei V, Nindel T, Wilkie A, Didyk P, Bickel
B, Křivánek J, Myszkowski K. 2019. Geometry-aware scattering compensation for
3D printing. ACM Transactions on Graphics. 38(4), 111.
mla: Sumin, Denis, et al. “Geometry-Aware Scattering Compensation for 3D Printing.”
ACM Transactions on Graphics, vol. 38, no. 4, 111, ACM, 2019, doi:10.1145/3306346.3322992.
short: D. Sumin, T. Weyrich, T. Rittig, V. Babaei, T. Nindel, A. Wilkie, P. Didyk,
B. Bickel, J. Křivánek, K. Myszkowski, ACM Transactions on Graphics 38 (2019).
date_created: 2019-07-22T07:22:28Z
date_published: 2019-07-04T00:00:00Z
date_updated: 2023-08-29T06:40:49Z
day: '04'
ddc:
- '000'
department:
- _id: BeBi
doi: 10.1145/3306346.3322992
ec_funded: 1
external_id:
isi:
- '000475740600085'
file:
- access_level: open_access
checksum: 43c2019d6b48ed9c56e31686c4c2d1f5
content_type: application/pdf
creator: dernst
date_created: 2019-07-24T07:36:08Z
date_updated: 2020-07-14T12:47:36Z
file_id: '6669'
file_name: 2019_ACM_Sumin_AuthorVersion.pdf
file_size: 10109800
relation: main_file
- access_level: open_access
checksum: f80f365a04e35855fa467ea7ab26b16c
content_type: application/zip
creator: dernst
date_created: 2019-10-11T06:51:07Z
date_updated: 2020-07-14T12:47:36Z
file_id: '6938'
file_name: sumin19geometry-aware-suppl.zip
file_size: 11051245
relation: supplementary_material
file_date_updated: 2020-07-14T12:47:36Z
has_accepted_license: '1'
intvolume: ' 38'
isi: 1
issue: '4'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Submitted Version
project:
- _id: 2508E324-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '642841'
name: Distributed 3D Object Design
- _id: 24F9549A-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '715767'
name: 'MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and
Modeling'
publication: ACM Transactions on Graphics
publication_identifier:
issn:
- 0730-0301
publication_status: published
publisher: ACM
quality_controlled: '1'
scopus_import: '1'
status: public
title: Geometry-aware scattering compensation for 3D printing
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 38
year: '2019'
...
---
_id: '6650'
abstract:
- lang: eng
text: We propose a novel technique for the automatic design of molds to cast highly
complex shapes. The technique generates composite, two-piece molds. Each mold
piece is made up of a hard plastic shell and a flexible silicone part. Thanks
to the thin, soft, and smartly shaped silicone part, which is kept in place by
a hard plastic shell, we can cast objects of unprecedented complexity. An innovative
algorithm based on a volumetric analysis defines the layout of the internal cuts
in the silicone mold part. Our approach can robustly handle thin protruding features
and intertwined topologies that have caused previous methods to fail. We compare
our results with state of the art techniques, and we demonstrate the casting of
shapes with extremely complex geometry.
article_number: '110'
article_processing_charge: No
author:
- first_name: Thomas
full_name: Alderighi, Thomas
last_name: Alderighi
- first_name: Luigi
full_name: Malomo, Luigi
last_name: Malomo
- first_name: Daniela
full_name: Giorgi, Daniela
last_name: Giorgi
- first_name: Bernd
full_name: Bickel, Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
- first_name: Paolo
full_name: Cignoni, Paolo
last_name: Cignoni
- first_name: Nico
full_name: Pietroni, Nico
last_name: Pietroni
citation:
ama: Alderighi T, Malomo L, Giorgi D, Bickel B, Cignoni P, Pietroni N. Volume-aware
design of composite molds. ACM Transactions on Graphics. 2019;38(4). doi:10.1145/3306346.3322981
apa: Alderighi, T., Malomo, L., Giorgi, D., Bickel, B., Cignoni, P., & Pietroni,
N. (2019). Volume-aware design of composite molds. ACM Transactions on Graphics.
ACM. https://doi.org/10.1145/3306346.3322981
chicago: Alderighi, Thomas, Luigi Malomo, Daniela Giorgi, Bernd Bickel, Paolo Cignoni,
and Nico Pietroni. “Volume-Aware Design of Composite Molds.” ACM Transactions
on Graphics. ACM, 2019. https://doi.org/10.1145/3306346.3322981.
ieee: T. Alderighi, L. Malomo, D. Giorgi, B. Bickel, P. Cignoni, and N. Pietroni,
“Volume-aware design of composite molds,” ACM Transactions on Graphics,
vol. 38, no. 4. ACM, 2019.
ista: Alderighi T, Malomo L, Giorgi D, Bickel B, Cignoni P, Pietroni N. 2019. Volume-aware
design of composite molds. ACM Transactions on Graphics. 38(4), 110.
mla: Alderighi, Thomas, et al. “Volume-Aware Design of Composite Molds.” ACM
Transactions on Graphics, vol. 38, no. 4, 110, ACM, 2019, doi:10.1145/3306346.3322981.
short: T. Alderighi, L. Malomo, D. Giorgi, B. Bickel, P. Cignoni, N. Pietroni, ACM
Transactions on Graphics 38 (2019).
date_created: 2019-07-19T06:18:15Z
date_published: 2019-07-01T00:00:00Z
date_updated: 2023-08-29T06:35:52Z
day: '01'
ddc:
- '000'
department:
- _id: BeBi
doi: 10.1145/3306346.3322981
ec_funded: 1
external_id:
isi:
- '000475740600084'
file:
- access_level: open_access
checksum: b4562af94672b44d2a501046427412af
content_type: application/pdf
creator: dernst
date_created: 2019-07-19T06:18:53Z
date_updated: 2020-07-14T12:47:35Z
file_id: '6651'
file_name: 2019_ACM_Alderighi_AuthorVersion.pdf
file_size: 74316182
relation: main_file
file_date_updated: 2020-07-14T12:47:35Z
has_accepted_license: '1'
intvolume: ' 38'
isi: 1
issue: '4'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Submitted Version
project:
- _id: 24F9549A-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '715767'
name: 'MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and
Modeling'
publication: ACM Transactions on Graphics
publication_identifier:
issn:
- 0730-0301
publication_status: published
publisher: ACM
quality_controlled: '1'
related_material:
link:
- description: YouTube Video
relation: supplementary_material
url: https://youtu.be/SO349S8-x_w
scopus_import: '1'
status: public
title: Volume-aware design of composite molds
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 38
year: '2019'
...
---
_id: '9261'
abstract:
- lang: eng
text: 'Bending-active structures are able to efficiently produce complex curved
shapes starting from flat panels. The desired deformation of the panels derives
from the proper selection of their elastic properties. Optimized panels, called
FlexMaps, are designed such that, once they are bent and assembled, the resulting
static equilibrium configuration matches a desired input 3D shape. The FlexMaps
elastic properties are controlled by locally varying spiraling geometric mesostructures,
which are optimized in size and shape to match the global curvature (i.e., bending
requests) of the target shape. The design pipeline starts from a quad mesh representing
the input 3D shape, which defines the edge size and the total amount of spirals:
every quad will embed one spiral. Then, an optimization algorithm tunes the geometry
of the spirals by using a simplified pre-computed rod model. This rod model is
derived from a non-linear regression algorithm which approximates the non-linear
behavior of solid FEM spiral models subject to hundreds of load combinations.
This innovative pipeline has been applied to the project of a lightweight plywood
pavilion named FlexMaps Pavilion, which is a single-layer piecewise twisted arc
that fits a bounding box of 3.90x3.96x3.25 meters.'
article_processing_charge: No
author:
- first_name: Francesco
full_name: Laccone, Francesco
last_name: Laccone
- first_name: Luigi
full_name: Malomo, Luigi
last_name: Malomo
- first_name: Jesus
full_name: Perez Rodriguez, Jesus
id: 2DC83906-F248-11E8-B48F-1D18A9856A87
last_name: Perez Rodriguez
- first_name: Nico
full_name: Pietroni, Nico
last_name: Pietroni
- first_name: Federico
full_name: Ponchio, Federico
last_name: Ponchio
- first_name: Bernd
full_name: Bickel, Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
- first_name: Paolo
full_name: Cignoni, Paolo
last_name: Cignoni
citation:
ama: 'Laccone F, Malomo L, Perez Rodriguez J, et al. FlexMaps Pavilion: A twisted
arc made of mesostructured flat flexible panels. In: IASS Symposium 2019 -
60th Anniversary Symposium of the International Association for Shell and Spatial
Structures; Structural Membranes 2019 - 9th International Conference on Textile
Composites and Inflatable Structures, FORM and FORCE. International Center
for Numerical Methods in Engineering; 2019:509-515.'
apa: 'Laccone, F., Malomo, L., Perez Rodriguez, J., Pietroni, N., Ponchio, F., Bickel,
B., & Cignoni, P. (2019). FlexMaps Pavilion: A twisted arc made of mesostructured
flat flexible panels. In IASS Symposium 2019 - 60th Anniversary Symposium of
the International Association for Shell and Spatial Structures; Structural Membranes
2019 - 9th International Conference on Textile Composites and Inflatable Structures,
FORM and FORCE (pp. 509–515). Barcelona, Spain: International Center for Numerical
Methods in Engineering.'
chicago: 'Laccone, Francesco, Luigi Malomo, Jesus Perez Rodriguez, Nico Pietroni,
Federico Ponchio, Bernd Bickel, and Paolo Cignoni. “FlexMaps Pavilion: A Twisted
Arc Made of Mesostructured Flat Flexible Panels.” In IASS Symposium 2019 -
60th Anniversary Symposium of the International Association for Shell and Spatial
Structures; Structural Membranes 2019 - 9th International Conference on Textile
Composites and Inflatable Structures, FORM and FORCE, 509–15. International
Center for Numerical Methods in Engineering, 2019.'
ieee: 'F. Laccone et al., “FlexMaps Pavilion: A twisted arc made of mesostructured
flat flexible panels,” in IASS Symposium 2019 - 60th Anniversary Symposium
of the International Association for Shell and Spatial Structures; Structural
Membranes 2019 - 9th International Conference on Textile Composites and Inflatable
Structures, FORM and FORCE, Barcelona, Spain, 2019, pp. 509–515.'
ista: 'Laccone F, Malomo L, Perez Rodriguez J, Pietroni N, Ponchio F, Bickel B,
Cignoni P. 2019. FlexMaps Pavilion: A twisted arc made of mesostructured flat
flexible panels. IASS Symposium 2019 - 60th Anniversary Symposium of the International
Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th
International Conference on Textile Composites and Inflatable Structures, FORM
and FORCE. IASS: International Association for Shell and Spatial Structures, 509–515.'
mla: 'Laccone, Francesco, et al. “FlexMaps Pavilion: A Twisted Arc Made of Mesostructured
Flat Flexible Panels.” IASS Symposium 2019 - 60th Anniversary Symposium of
the International Association for Shell and Spatial Structures; Structural Membranes
2019 - 9th International Conference on Textile Composites and Inflatable Structures,
FORM and FORCE, International Center for Numerical Methods in Engineering,
2019, pp. 509–15.'
short: F. Laccone, L. Malomo, J. Perez Rodriguez, N. Pietroni, F. Ponchio, B. Bickel,
P. Cignoni, in:, IASS Symposium 2019 - 60th Anniversary Symposium of the International
Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th
International Conference on Textile Composites and Inflatable Structures, FORM
and FORCE, International Center for Numerical Methods in Engineering, 2019, pp.
509–515.
conference:
end_date: 2019-10-10
location: Barcelona, Spain
name: 'IASS: International Association for Shell and Spatial Structures'
start_date: 2019-10-07
date_created: 2021-03-21T23:01:21Z
date_published: 2019-10-10T00:00:00Z
date_updated: 2023-09-08T11:21:54Z
day: '10'
department:
- _id: BeBi
external_id:
isi:
- '000563497600059'
isi: 1
language:
- iso: eng
month: '10'
oa_version: None
page: 509-515
publication: IASS Symposium 2019 - 60th Anniversary Symposium of the International
Association for Shell and Spatial Structures; Structural Membranes 2019 - 9th International
Conference on Textile Composites and Inflatable Structures, FORM and FORCE
publication_identifier:
isbn:
- '9788412110104'
issn:
- 2518-6582
publication_status: published
publisher: International Center for Numerical Methods in Engineering
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'FlexMaps Pavilion: A twisted arc made of mesostructured flat flexible panels'
type: conference
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
year: '2019'
...
---
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last_name: Guseinov
orcid: 0000-0001-9819-5077
citation:
ama: Guseinov R. Supplementary data for “Programming temporal morphing of self-actuated
shells.” 2019. doi:10.15479/AT:ISTA:7154
apa: Guseinov, R. (2019). Supplementary data for “Programming temporal morphing
of self-actuated shells.” Institute of Science and Technology Austria. https://doi.org/10.15479/AT:ISTA:7154
chicago: Guseinov, Ruslan. “Supplementary Data for ‘Programming Temporal Morphing
of Self-Actuated Shells.’” Institute of Science and Technology Austria, 2019.
https://doi.org/10.15479/AT:ISTA:7154.
ieee: R. Guseinov, “Supplementary data for ‘Programming temporal morphing of self-actuated
shells.’” Institute of Science and Technology Austria, 2019.
ista: Guseinov R. 2019. Supplementary data for ‘Programming temporal morphing of
self-actuated shells’, Institute of Science and Technology Austria, 10.15479/AT:ISTA:7154.
mla: Guseinov, Ruslan. Supplementary Data for “Programming Temporal Morphing
of Self-Actuated Shells.” Institute of Science and Technology Austria, 2019,
doi:10.15479/AT:ISTA:7154.
short: R. Guseinov, (2019).
contributor:
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id: 3AB45EE2-F248-11E8-B48F-1D18A9856A87
last_name: Guseinov
orcid: 0000-0001-9819-5077
- first_name: Connor
last_name: McMahan
- first_name: Jesus
id: 2DC83906-F248-11E8-B48F-1D18A9856A87
last_name: Perez Rodriguez
- first_name: Chiara
last_name: Daraio
- first_name: Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
date_created: 2019-12-09T07:52:46Z
date_published: 2019-12-06T00:00:00Z
date_updated: 2024-02-21T12:45:03Z
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ec_funded: 1
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license: https://creativecommons.org/publicdomain/zero/1.0/
month: '12'
oa: 1
oa_version: Published Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publisher: Institute of Science and Technology Austria
related_material:
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status: deleted
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status: public
status: public
title: Supplementary data for "Programming temporal morphing of self-actuated shells"
tmp:
image: /images/cc_0.png
legal_code_url: https://creativecommons.org/publicdomain/zero/1.0/legalcode
name: Creative Commons Public Domain Dedication (CC0 1.0)
short: CC0 (1.0)
type: research_data
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year: '2019'
...
---
_id: '7117'
abstract:
- lang: eng
text: We propose a novel generic shape optimization method for CAD models based
on the eXtended Finite Element Method (XFEM). Our method works directly on the
intersection between the model and a regular simulation grid, without the need
to mesh or remesh, thus removing a bottleneck of classical shape optimization
strategies. This is made possible by a novel hierarchical integration scheme that
accurately integrates finite element quantities with sub-element precision. For
optimization, we efficiently compute analytical shape derivatives of the entire
framework, from model intersection to integration rule generation and XFEM simulation.
Moreover, we describe a differentiable projection of shape parameters onto a constraint
manifold spanned by user-specified shape preservation, consistency, and manufacturability
constraints. We demonstrate the utility of our approach by optimizing mass distribution,
strength-to-weight ratio, and inverse elastic shape design objectives directly
on parameterized 3D CAD models.
article_number: '157'
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author:
- first_name: Christian
full_name: Hafner, Christian
id: 400429CC-F248-11E8-B48F-1D18A9856A87
last_name: Hafner
- first_name: Christian
full_name: Schumacher, Christian
last_name: Schumacher
- first_name: Espen
full_name: Knoop, Espen
last_name: Knoop
- first_name: Thomas
full_name: Auzinger, Thomas
id: 4718F954-F248-11E8-B48F-1D18A9856A87
last_name: Auzinger
orcid: 0000-0002-1546-3265
- first_name: Bernd
full_name: Bickel, Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
- first_name: Moritz
full_name: Bächer, Moritz
last_name: Bächer
citation:
ama: 'Hafner C, Schumacher C, Knoop E, Auzinger T, Bickel B, Bächer M. X-CAD: Optimizing
CAD Models with Extended Finite Elements. ACM Transactions on Graphics.
2019;38(6). doi:10.1145/3355089.3356576'
apa: 'Hafner, C., Schumacher, C., Knoop, E., Auzinger, T., Bickel, B., & Bächer,
M. (2019). X-CAD: Optimizing CAD Models with Extended Finite Elements. ACM
Transactions on Graphics. ACM. https://doi.org/10.1145/3355089.3356576'
chicago: 'Hafner, Christian, Christian Schumacher, Espen Knoop, Thomas Auzinger,
Bernd Bickel, and Moritz Bächer. “X-CAD: Optimizing CAD Models with Extended Finite
Elements.” ACM Transactions on Graphics. ACM, 2019. https://doi.org/10.1145/3355089.3356576.'
ieee: 'C. Hafner, C. Schumacher, E. Knoop, T. Auzinger, B. Bickel, and M. Bächer,
“X-CAD: Optimizing CAD Models with Extended Finite Elements,” ACM Transactions
on Graphics, vol. 38, no. 6. ACM, 2019.'
ista: 'Hafner C, Schumacher C, Knoop E, Auzinger T, Bickel B, Bächer M. 2019. X-CAD:
Optimizing CAD Models with Extended Finite Elements. ACM Transactions on Graphics.
38(6), 157.'
mla: 'Hafner, Christian, et al. “X-CAD: Optimizing CAD Models with Extended Finite
Elements.” ACM Transactions on Graphics, vol. 38, no. 6, 157, ACM, 2019,
doi:10.1145/3355089.3356576.'
short: C. Hafner, C. Schumacher, E. Knoop, T. Auzinger, B. Bickel, M. Bächer, ACM
Transactions on Graphics 38 (2019).
date_created: 2019-11-26T14:22:09Z
date_published: 2019-11-06T00:00:00Z
date_updated: 2024-03-27T23:30:46Z
day: '06'
ddc:
- '000'
department:
- _id: BeBi
doi: 10.1145/3355089.3356576
ec_funded: 1
external_id:
isi:
- '000498397300007'
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month: '11'
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oa_version: Submitted Version
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call_identifier: H2020
grant_number: '715767'
name: 'MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and
Modeling'
publication: ACM Transactions on Graphics
publication_identifier:
issn:
- 0730-0301
publication_status: published
publisher: ACM
quality_controlled: '1'
related_material:
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relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: 'X-CAD: Optimizing CAD Models with Extended Finite Elements'
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 38
year: '2019'
...
---
_id: '304'
abstract:
- lang: eng
text: "Additive manufacturing has recently seen drastic improvements in resolution,
making it now possible to fabricate features at scales of hundreds or even dozens
of nanometers, which previously required very expensive lithographic methods.\r\nAs
a result, additive manufacturing now seems poised for optical applications, including
those relevant to computer graphics, such as material design, as well as display
and imaging applications.\r\n \r\nIn this work, we explore the use of additive
manufacturing for generating structural colors, where the structures are designed
using a fabrication-aware optimization process.\r\nThis requires a combination
of full-wave simulation, a feasible parameterization of the design space, and
a tailored optimization procedure.\r\nMany of these components should be re-usable
for the design of other optical structures at this scale.\r\n \r\nWe show initial
results of material samples fabricated based on our designs.\r\nWhile these suffer
from the prototype character of state-of-the-art fabrication hardware, we believe
they clearly demonstrate the potential of additive nanofabrication for structural
colors and other graphics applications."
acknowledgement: This work was in part supported by King Abdullah University of Science
and Technology Baseline Funding.
alternative_title:
- ACM Transactions on Graphics
article_number: '159'
article_processing_charge: No
author:
- first_name: Thomas
full_name: Auzinger, Thomas
id: 4718F954-F248-11E8-B48F-1D18A9856A87
last_name: Auzinger
orcid: 0000-0002-1546-3265
- first_name: Wolfgang
full_name: Heidrich, Wolfgang
last_name: Heidrich
- first_name: Bernd
full_name: Bickel, Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
citation:
ama: Auzinger T, Heidrich W, Bickel B. Computational design of nanostructural color
for additive manufacturing. ACM Transactions on Graphics. 2018;37(4). doi:10.1145/3197517.3201376
apa: Auzinger, T., Heidrich, W., & Bickel, B. (2018). Computational design of
nanostructural color for additive manufacturing. ACM Transactions on Graphics.
ACM. https://doi.org/10.1145/3197517.3201376
chicago: Auzinger, Thomas, Wolfgang Heidrich, and Bernd Bickel. “Computational Design
of Nanostructural Color for Additive Manufacturing.” ACM Transactions on Graphics.
ACM, 2018. https://doi.org/10.1145/3197517.3201376.
ieee: T. Auzinger, W. Heidrich, and B. Bickel, “Computational design of nanostructural
color for additive manufacturing,” ACM Transactions on Graphics, vol. 37,
no. 4. ACM, 2018.
ista: Auzinger T, Heidrich W, Bickel B. 2018. Computational design of nanostructural
color for additive manufacturing. ACM Transactions on Graphics. 37(4), 159.
mla: Auzinger, Thomas, et al. “Computational Design of Nanostructural Color for
Additive Manufacturing.” ACM Transactions on Graphics, vol. 37, no. 4,
159, ACM, 2018, doi:10.1145/3197517.3201376.
short: T. Auzinger, W. Heidrich, B. Bickel, ACM Transactions on Graphics 37 (2018).
date_created: 2018-12-11T11:45:43Z
date_published: 2018-08-01T00:00:00Z
date_updated: 2023-09-11T12:46:13Z
day: '01'
ddc:
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- '535'
- '680'
department:
- _id: BeBi
doi: 10.1145/3197517.3201376
ec_funded: 1
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isi:
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call_identifier: H2020
grant_number: '715767'
name: 'MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and
Modeling'
publication: ACM Transactions on Graphics
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publisher: ACM
pubrep_id: '1028'
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related_material:
link:
- description: News on IST Homepage
relation: press_release
url: https://ist.ac.at/en/news/color-effects-from-transparent-3d-printed-nanostructures/
scopus_import: '1'
status: public
title: Computational design of nanostructural color for additive manufacturing
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 37
year: '2018'
...
---
_id: '12'
abstract:
- lang: eng
text: Molding is a popular mass production method, in which the initial expenses
for the mold are offset by the low per-unit production cost. However, the physical
fabrication constraints of the molding technique commonly restrict the shape of
moldable objects. For a complex shape, a decomposition of the object into moldable
parts is a common strategy to address these constraints, with plastic model kits
being a popular and illustrative example. However, conducting such a decomposition
requires considerable expertise, and it depends on the technical aspects of the
fabrication technique, as well as aesthetic considerations. We present an interactive
technique to create such decompositions for two-piece molding, in which each part
of the object is cast between two rigid mold pieces. Given the surface description
of an object, we decompose its thin-shell equivalent into moldable parts by first
performing a coarse decomposition and then utilizing an active contour model for
the boundaries between individual parts. Formulated as an optimization problem,
the movement of the contours is guided by an energy reflecting fabrication constraints
to ensure the moldability of each part. Simultaneously, the user is provided with
editing capabilities to enforce aesthetic guidelines. Our interactive interface
provides control of the contour positions by allowing, for example, the alignment
of part boundaries with object features. Our technique enables a novel workflow,
as it empowers novice users to explore the design space, and it generates fabrication-ready
two-piece molds that can be used either for casting or industrial injection molding
of free-form objects.
article_number: '135'
article_processing_charge: No
author:
- first_name: Kazutaka
full_name: Nakashima, Kazutaka
last_name: Nakashima
- first_name: Thomas
full_name: Auzinger, Thomas
id: 4718F954-F248-11E8-B48F-1D18A9856A87
last_name: Auzinger
orcid: 0000-0002-1546-3265
- first_name: Emmanuel
full_name: Iarussi, Emmanuel
id: 33F19F16-F248-11E8-B48F-1D18A9856A87
last_name: Iarussi
- first_name: Ran
full_name: Zhang, Ran
id: 4DDBCEB0-F248-11E8-B48F-1D18A9856A87
last_name: Zhang
orcid: 0000-0002-3808-281X
- first_name: Takeo
full_name: Igarashi, Takeo
last_name: Igarashi
- first_name: Bernd
full_name: Bickel, Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
citation:
ama: 'Nakashima K, Auzinger T, Iarussi E, Zhang R, Igarashi T, Bickel B. CoreCavity:
Interactive shell decomposition for fabrication with two-piece rigid molds. ACM
Transaction on Graphics. 2018;37(4). doi:10.1145/3197517.3201341'
apa: 'Nakashima, K., Auzinger, T., Iarussi, E., Zhang, R., Igarashi, T., & Bickel,
B. (2018). CoreCavity: Interactive shell decomposition for fabrication with two-piece
rigid molds. ACM Transaction on Graphics. ACM. https://doi.org/10.1145/3197517.3201341'
chicago: 'Nakashima, Kazutaka, Thomas Auzinger, Emmanuel Iarussi, Ran Zhang, Takeo
Igarashi, and Bernd Bickel. “CoreCavity: Interactive Shell Decomposition for Fabrication
with Two-Piece Rigid Molds.” ACM Transaction on Graphics. ACM, 2018. https://doi.org/10.1145/3197517.3201341.'
ieee: 'K. Nakashima, T. Auzinger, E. Iarussi, R. Zhang, T. Igarashi, and B. Bickel,
“CoreCavity: Interactive shell decomposition for fabrication with two-piece rigid
molds,” ACM Transaction on Graphics, vol. 37, no. 4. ACM, 2018.'
ista: 'Nakashima K, Auzinger T, Iarussi E, Zhang R, Igarashi T, Bickel B. 2018.
CoreCavity: Interactive shell decomposition for fabrication with two-piece rigid
molds. ACM Transaction on Graphics. 37(4), 135.'
mla: 'Nakashima, Kazutaka, et al. “CoreCavity: Interactive Shell Decomposition for
Fabrication with Two-Piece Rigid Molds.” ACM Transaction on Graphics, vol.
37, no. 4, 135, ACM, 2018, doi:10.1145/3197517.3201341.'
short: K. Nakashima, T. Auzinger, E. Iarussi, R. Zhang, T. Igarashi, B. Bickel,
ACM Transaction on Graphics 37 (2018).
date_created: 2018-12-11T11:44:09Z
date_published: 2018-08-04T00:00:00Z
date_updated: 2023-09-11T12:48:09Z
day: '04'
ddc:
- '004'
- '516'
- '670'
department:
- _id: BeBi
doi: 10.1145/3197517.3201341
ec_funded: 1
external_id:
isi:
- '000448185000096'
file:
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date_updated: 2020-07-14T12:44:38Z
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date_updated: 2020-07-14T12:44:38Z
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has_accepted_license: '1'
intvolume: ' 37'
isi: 1
issue: '4'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Submitted Version
project:
- _id: 24F9549A-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '715767'
name: 'MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and
Modeling'
- _id: 2508E324-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '642841'
name: Distributed 3D Object Design
publication: ACM Transaction on Graphics
publication_status: published
publisher: ACM
publist_id: '8044'
pubrep_id: '1037'
quality_controlled: '1'
related_material:
link:
- description: News on IST Homepage
relation: press_release
url: https://ist.ac.at/en/news/interactive-software-tool-makes-complex-mold-design-simple/
scopus_import: '1'
status: public
title: 'CoreCavity: Interactive shell decomposition for fabrication with two-piece
rigid molds'
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 37
year: '2018'
...
---
_id: '398'
abstract:
- lang: eng
text: 'Objective: To report long-term results after Pipeline Embolization Device
(PED) implantation, characterize complex and standard aneurysms comprehensively,
and introduce a modified flow disruption scale. Methods: We retrospectively reviewed
a consecutive series of 40 patients harboring 59 aneurysms treated with 54 PEDs.
Aneurysm complexity was assessed using our proposed classification. Immediate
angiographic results were analyzed using previously published grading scales and
our novel flow disruption scale. Results: According to our new definition, 46
(78%) aneurysms were classified as complex. Most PED interventions were performed
in the paraophthalmic and cavernous internal carotid artery segments. Excellent
neurologic outcome (modified Rankin Scale 0 and 1) was observed in 94% of patients.
Our data showed low permanent procedure-related mortality (0%) and morbidity (3%)
rates. Long-term angiographic follow-up showed complete occlusion in 81% and near-total
obliteration in a further 14%. Complete obliteration after deployment of a single
PED was achieved in all standard aneurysms with 1-year follow-up. Our new scale
was an independent predictor of aneurysm occlusion in a multivariable analysis.
All aneurysms with a high flow disruption grade showed complete occlusion at follow-up
regardless of PED number or aneurysm complexity. Conclusions: Treatment with the
PED should be recognized as a primary management strategy for a highly selected
cohort with predominantly complex intracranial aneurysms. We further show that
a priori assessment of aneurysm complexity and our new postinterventional angiographic
flow disruption scale predict occlusion probability and may help to determine
the adequate number of per-aneurysm devices.'
article_processing_charge: No
author:
- first_name: Philippe
full_name: Dodier, Philippe
last_name: Dodier
- first_name: Josa
full_name: Frischer, Josa
last_name: Frischer
- first_name: Wei
full_name: Wang, Wei
last_name: Wang
- first_name: Thomas
full_name: Auzinger, Thomas
id: 4718F954-F248-11E8-B48F-1D18A9856A87
last_name: Auzinger
orcid: 0000-0002-1546-3265
- first_name: Ammar
full_name: Mallouhi, Ammar
last_name: Mallouhi
- first_name: Wolfgang
full_name: Serles, Wolfgang
last_name: Serles
- first_name: Andreas
full_name: Gruber, Andreas
last_name: Gruber
- first_name: Engelbert
full_name: Knosp, Engelbert
last_name: Knosp
- first_name: Gerhard
full_name: Bavinzski, Gerhard
last_name: Bavinzski
citation:
ama: Dodier P, Frischer J, Wang W, et al. Immediate flow disruption as a prognostic
factor after flow diverter treatment long term experience with the pipeline embolization
device. World Neurosurgery. 2018;13:e568-e578. doi:10.1016/j.wneu.2018.02.096
apa: Dodier, P., Frischer, J., Wang, W., Auzinger, T., Mallouhi, A., Serles, W.,
… Bavinzski, G. (2018). Immediate flow disruption as a prognostic factor after
flow diverter treatment long term experience with the pipeline embolization device.
World Neurosurgery. Elsevier. https://doi.org/10.1016/j.wneu.2018.02.096
chicago: Dodier, Philippe, Josa Frischer, Wei Wang, Thomas Auzinger, Ammar Mallouhi,
Wolfgang Serles, Andreas Gruber, Engelbert Knosp, and Gerhard Bavinzski. “Immediate
Flow Disruption as a Prognostic Factor after Flow Diverter Treatment Long Term
Experience with the Pipeline Embolization Device.” World Neurosurgery.
Elsevier, 2018. https://doi.org/10.1016/j.wneu.2018.02.096.
ieee: P. Dodier et al., “Immediate flow disruption as a prognostic factor
after flow diverter treatment long term experience with the pipeline embolization
device,” World Neurosurgery, vol. 13. Elsevier, pp. e568–e578, 2018.
ista: Dodier P, Frischer J, Wang W, Auzinger T, Mallouhi A, Serles W, Gruber A,
Knosp E, Bavinzski G. 2018. Immediate flow disruption as a prognostic factor after
flow diverter treatment long term experience with the pipeline embolization device.
World Neurosurgery. 13, e568–e578.
mla: Dodier, Philippe, et al. “Immediate Flow Disruption as a Prognostic Factor
after Flow Diverter Treatment Long Term Experience with the Pipeline Embolization
Device.” World Neurosurgery, vol. 13, Elsevier, 2018, pp. e568–78, doi:10.1016/j.wneu.2018.02.096.
short: P. Dodier, J. Frischer, W. Wang, T. Auzinger, A. Mallouhi, W. Serles, A.
Gruber, E. Knosp, G. Bavinzski, World Neurosurgery 13 (2018) e568–e578.
date_created: 2018-12-11T11:46:15Z
date_published: 2018-05-01T00:00:00Z
date_updated: 2023-09-11T14:12:33Z
day: '01'
department:
- _id: BeBi
doi: 10.1016/j.wneu.2018.02.096
external_id:
isi:
- '000432942700070'
intvolume: ' 13'
isi: 1
language:
- iso: eng
month: '05'
oa_version: None
page: e568-e578
publication: World Neurosurgery
publication_status: published
publisher: Elsevier
publist_id: '7431'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Immediate flow disruption as a prognostic factor after flow diverter treatment
long term experience with the pipeline embolization device
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 13
year: '2018'
...
---
_id: '4'
abstract:
- lang: eng
text: We present a data-driven technique to instantly predict how fluid flows around
various three-dimensional objects. Such simulation is useful for computational
fabrication and engineering, but is usually computationally expensive since it
requires solving the Navier-Stokes equation for many time steps. To accelerate
the process, we propose a machine learning framework which predicts aerodynamic
forces and velocity and pressure fields given a threedimensional shape input.
Handling detailed free-form three-dimensional shapes in a data-driven framework
is challenging because machine learning approaches usually require a consistent
parametrization of input and output. We present a novel PolyCube maps-based parametrization
that can be computed for three-dimensional shapes at interactive rates. This allows
us to efficiently learn the nonlinear response of the flow using a Gaussian process
regression. We demonstrate the effectiveness of our approach for the interactive
design and optimization of a car body.
article_number: '89'
article_processing_charge: No
author:
- first_name: Nobuyuki
full_name: Umetani, Nobuyuki
last_name: Umetani
- first_name: Bernd
full_name: Bickel, Bernd
id: 49876194-F248-11E8-B48F-1D18A9856A87
last_name: Bickel
orcid: 0000-0001-6511-9385
citation:
ama: Umetani N, Bickel B. Learning three-dimensional flow for interactive aerodynamic
design. ACM Trans Graph. 2018;37(4). doi:10.1145/3197517.3201325
apa: Umetani, N., & Bickel, B. (2018). Learning three-dimensional flow for interactive
aerodynamic design. ACM Trans. Graph. ACM. https://doi.org/10.1145/3197517.3201325
chicago: Umetani, Nobuyuki, and Bernd Bickel. “Learning Three-Dimensional Flow for
Interactive Aerodynamic Design.” ACM Trans. Graph. ACM, 2018. https://doi.org/10.1145/3197517.3201325.
ieee: N. Umetani and B. Bickel, “Learning three-dimensional flow for interactive
aerodynamic design,” ACM Trans. Graph., vol. 37, no. 4. ACM, 2018.
ista: Umetani N, Bickel B. 2018. Learning three-dimensional flow for interactive
aerodynamic design. ACM Trans. Graph. 37(4), 89.
mla: Umetani, Nobuyuki, and Bernd Bickel. “Learning Three-Dimensional Flow for Interactive
Aerodynamic Design.” ACM Trans. Graph., vol. 37, no. 4, 89, ACM, 2018,
doi:10.1145/3197517.3201325.
short: N. Umetani, B. Bickel, ACM Trans. Graph. 37 (2018).
date_created: 2018-12-11T11:44:06Z
date_published: 2018-08-04T00:00:00Z
date_updated: 2023-09-13T08:46:15Z
day: '04'
ddc:
- '003'
- '004'
department:
- _id: BeBi
doi: 10.1145/3197517.3201325
ec_funded: 1
external_id:
isi:
- '000448185000050'
file:
- access_level: open_access
checksum: 7a2243668f215821bc6aecad0320079a
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:16:28Z
date_updated: 2020-07-14T12:46:22Z
file_id: '5216'
file_name: IST-2018-1049-v1+1_2018_sigg_Learning3DAerodynamics.pdf
file_size: 22803163
relation: main_file
file_date_updated: 2020-07-14T12:46:22Z
has_accepted_license: '1'
intvolume: ' 37'
isi: 1
issue: '4'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Submitted Version
project:
- _id: 24F9549A-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '715767'
name: 'MATERIALIZABLE: Intelligent fabrication-oriented Computational Design and
Modeling'
publication: ACM Trans. Graph.
publication_status: published
publisher: ACM
publist_id: '8053'
pubrep_id: '1049'
quality_controlled: '1'
related_material:
link:
- description: News on IST Homepage
relation: press_release
url: https://ist.ac.at/en/news/new-interactive-machine-learning-tool-makes-car-designs-more-aerodynamic/
scopus_import: '1'
status: public
title: Learning three-dimensional flow for interactive aerodynamic design
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 37
year: '2018'
...