Tuesday, February 12, 2019
12:00 pm

IST Lunch Bunch

Fast large-deformation elastodynamics with accurate materials and consistent meshes
Jernej Barbic, Andrew and Erna Viterbi Early Career Chair and Associate Professor , Computer Science, University of Southern California

I will present my recent research on modelinglarge-deformation elastodynamics using the Finite Element Method.While FEM and PDEs of elasticity are well-understood, they cannoteasily match the observations of real complex elastodynamic systemssuch as the human body, plants and virtual characters. Commonobstacles in practice include unknown nonlinear materials,inconsistent meshes that self-collide already in the neutralconfiguration, and stringent computational speed requirements. I willpresent techniques to set nonlinear material properties to matchreal-world observations. I will also discuss how to simplify complexelastodynamics using model reduction. Finally, I will discuss ourrecent technique that uses geometric and algebraic topology togenerate tetrahedral meshes that mesh the volume occupied by theobject despite self-collisions in the input mesh.

Contact Diane Goodfellow diane@cms.caltech.edu
Add this event to my calendar