filename : Kau08.pdf entry : inproceedings conference : SCA 2008, July 7-9, Dublin, Ireland pages : 105-115 year : 2008 month : July title : Flexible Simulation of Deformable Models Using Discontinuous Galerkin FEM subtitle : author : Peter Kaufmann and Sebastian Martin and Mario Botsch and Markus Gross booktitle : ISSN/ISBN : editor : publisher : Eurographics Association publ.place : Aire-la-Ville, Switzerland volume : issue : language : english keywords : FEM, Discontinuous Galerkin, Deformations, Physically-Based Simulation, Refinement, Cutting abstract : We propose a simulation technique for elastically deformable objects based on the discontinuous Galerkin finite element method (DG FEM). In contrast to traditional FEM, it overcomes the restrictions of conforming basis functions by allowing for discontinuous elements with weakly enforced continuity constraints. This added flexibility enables the simulation of arbitrarily shaped, convex and non-convex polyhedral elements, while still using simple polynomial basis functions. For the accurate strain integration over these elements we propose an analytic technique based on the divergence theorem. Being able to handle arbitrary elements eventually allows us to derive simple and efficient techniques for volumetric mesh generation, adaptive mesh refinement, and robust cutting.