High-resolution brittle fracture simulation with boundary elements

D. Hahn, C.J. Wojtan, in:, ACM, 2015.

Download
OA 20.15 MB

Conference Paper | Published | English
Department
Abstract
We present a method for simulating brittle fracture under the assumptions of quasi-static linear elastic fracture mechanics (LEFM). Using the boundary element method (BEM) and Lagrangian crack-fronts, we produce highly detailed fracture surfaces. The computational cost of the BEM is alleviated by using a low-resolution mesh and interpolating the resulting stress intensity factors when propagating the high-resolution crack-front. Our system produces physics-based fracture surfaces with high spatial and temporal resolution, taking spatial variation of material toughness and/or strength into account. It also allows for crack initiation to be handled separately from crack propagation, which is not only more reasonable from a physics perspective, but can also be used to control the simulation. Separating the resolution of the crack-front from the resolution of the computational mesh increases the efficiency and therefore the amount of visual detail on the resulting fracture surfaces. The BEM also allows us to re-use previously computed blocks of the system matrix.
Publishing Year
Date Published
2015-07-27
Volume
34
Issue
4
Article Number
151
Conference
SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques
Conference Location
Los Angeles, CA, United States
Conference Date
2015-08-09 – 2015-08-13
IST-REx-ID

Cite this

Hahn D, Wojtan CJ. High-resolution brittle fracture simulation with boundary elements. In: Vol 34. ACM; 2015. doi:10.1145/2766896
Hahn, D., & Wojtan, C. J. (2015). High-resolution brittle fracture simulation with boundary elements (Vol. 34). Presented at the SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques, Los Angeles, CA, United States: ACM. https://doi.org/10.1145/2766896
Hahn, David, and Christopher J Wojtan. “High-Resolution Brittle Fracture Simulation with Boundary Elements,” Vol. 34. ACM, 2015. https://doi.org/10.1145/2766896.
D. Hahn and C. J. Wojtan, “High-resolution brittle fracture simulation with boundary elements,” presented at the SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques, Los Angeles, CA, United States, 2015, vol. 34, no. 4.
Hahn D, Wojtan CJ. 2015. High-resolution brittle fracture simulation with boundary elements. SIGGRAPH: Special Interest Group on Computer Graphics and Interactive Techniques vol. 34.
Hahn, David, and Christopher J. Wojtan. High-Resolution Brittle Fracture Simulation with Boundary Elements. Vol. 34, no. 4, 151, ACM, 2015, doi:10.1145/2766896.
Main File(s)
Access Level
OA Open Access
Last Uploaded
2018-12-12T10:15:13Z


Material in IST:
Dissertation containing IST record

Export

Marked Publications

Open Data IST Research Explorer

Search this title in

Google Scholar