filename : p_Mue04a.pdf conference : Graphics Interface (GI 2004), London, Ontario, Canada, May 17-19, 2004 entry : inproceedings pages : 239-246 year : 2004 month : May title : Interactive Virtual Materials subtitle : author : Matthias Müller and Markus Gross booktitle : Proceedings of Graphics Interface 2004 ISSN/ISBN : 0713-5424/1-56881-227-2 editor : Ravin Balakrishnan, Wolfgang Heidrich publisher : Canadian Human-Computer Communications Society publ.place : Waterloo, Canada volume : issue : language : english keywords : Physically Based Animation, Finite Element Method, Large Deformations, Stiffness Warping, Elasticity, Plasticity, Fracture. abstract : In this paper we present a fast and robust approach for simulating elasto-plastic materials and fracture in real time. Our method extends the warped stiffness finite element approach for linear elasticity and combines it with a strain-state-based plasticity model. The internal principal stress components provided by the finite element computation are used to determine fracture locations and orientations. We also present a method to consistently animate and fracture a detailed surface mesh along with the underlying volumetric tetrahedral mesh. This multi-resolution strategy produces realistic animations of a wide spectrum of materials at interactive rates that have typically been simulated off-line thus far.