A finite element method for animating large viscoplastic flow

Bargteil A, Wojtan CJ, Hodgins J, Turk G. 2007. A finite element method for animating large viscoplastic flow. ACM Transactions on Graphics. 26(3).

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Journal Article | Published | English
Author
Bargteil, Adam; Wojtan, ChrisIST Austria ; Hodgins, Jessica; Turk, Greg
Abstract
We present an extension to Lagrangian finite element methods to allow for large plastic deformations of solid materials. These behaviors are seen in such everyday materials as shampoo, dough, and clay as well as in fantastic gooey and blobby creatures in special effects scenes. To account for plastic deformation, we explicitly update the linear basis functions defined over the finite elements during each simulation step. When these updates cause the basis functions to become ill-conditioned, we remesh the simulation domain to produce a new high-quality finite-element mesh, taking care to preserve the original boundary. We also introduce an enhanced plasticity model that preserves volume and includes creep and work hardening/softening. We demonstrate our approach with simulations of synthetic objects that squish, dent, and flow. To validate our methods, we compare simulation results to videos of real materials.
Publishing Year
Date Published
2007-07-29
Journal Title
ACM Transactions on Graphics
Volume
26
Issue
3
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Bargteil A, Wojtan CJ, Hodgins J, Turk G. A finite element method for animating large viscoplastic flow. ACM Transactions on Graphics. 2007;26(3). doi:10.1145/1276377.1276397
Bargteil, A., Wojtan, C. J., Hodgins, J., & Turk, G. (2007). A finite element method for animating large viscoplastic flow. ACM Transactions on Graphics. ACM. https://doi.org/10.1145/1276377.1276397
Bargteil, Adam, Christopher J Wojtan, Jessica Hodgins, and Greg Turk. “A Finite Element Method for Animating Large Viscoplastic Flow.” ACM Transactions on Graphics. ACM, 2007. https://doi.org/10.1145/1276377.1276397.
A. Bargteil, C. J. Wojtan, J. Hodgins, and G. Turk, “A finite element method for animating large viscoplastic flow,” ACM Transactions on Graphics, vol. 26, no. 3. ACM, 2007.
Bargteil A, Wojtan CJ, Hodgins J, Turk G. 2007. A finite element method for animating large viscoplastic flow. ACM Transactions on Graphics. 26(3).
Bargteil, Adam, et al. “A Finite Element Method for Animating Large Viscoplastic Flow.” ACM Transactions on Graphics, vol. 26, no. 3, ACM, 2007, doi:10.1145/1276377.1276397.

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