Sciweavers

SIGGRAPH
2010
ACM

Dynamic local remeshing for elastoplastic simulation

13 years 8 months ago
Dynamic local remeshing for elastoplastic simulation
We propose a finite element simulation method that addresses the full range of material behavior, from purely elastic to highly plastic, for physical domains that are substantially reshaped by plastic flow, fracture, or large elastic deformations. To mitigate artificial plasticity, we maintain a simulation mesh in both the current state and the rest shape, and store plastic offsets only to represent the nonembeddable portion of the plastic deformation. To maintain high element quality in a tetrahedral mesh undergoing gross changes, we use a dynamic meshing algorithm that attempts to replace as few tetrahedra as possible, and thereby limits the visual artifacts and artificial diffusion that would otherwise be introduced by repeatedly remeshing the domain from scratch. Our dynamic mesher also locally refines and coarsens a mesh, and even creates anisotropic tetrahedra, wherever a simulation requests it. We illustrate these features with animations of elastic and plastic behavior, e...
Martin Wicke, Daniel Ritchie, Bryan M. Klingner, S
Added 28 Jul 2010
Updated 29 Jul 2010
Type Conference
Year 2010
Where SIGGRAPH
Authors Martin Wicke, Daniel Ritchie, Bryan M. Klingner, Sebastian Burke, Jonathan R. Shewchuk, James F. O'Brien
Comments (0)