Locking-free Simulation of Isometric Thin Plates

2019/11/12 by Chen, Hsiao-yu, Kry, Paul, Vouga, Etienne · 2 citations
#FOS: Computer and information sciences #Graphics (cs.GR)

paper · doi:10.48550/arxiv.1911.05204

Abstract

To efficiently simulate very thin, inextensible materials like cloth or paper, it is tempting to replace force-based thin-plate dynamics with hard isometry constraints. Unfortunately, naive formulations of the constraints induce membrane locking---artificial stiffening of bending modes due to the inability of discrete kinematics to reproduce exact isometries. We propose a simple set of meshless isometry constraints, based on moving-least-squares averaging of the strain tensor, which do not lock, and which can be easily incorporated into standard constrained Lagrangian dynamics integration.

Cited by

• Unlocking Thickness Modeling for Codimensional Contact Simulation
• Learning Simulatable Models of Cloth with Spatially-varying Constitutive Properties

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