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arXiv · 2405.13730

Subspace Mixed-FEM for Real-Time Heterogeneous Elastodynamics

Ty Trusty·Otman Benchekroun·Eitan Grinspun·Danny M. Kaufman·David I. W. Levin
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Abstract

We propose a reduced space mixed finite element method (MFEM) built on a Skinning Eigenmode subspace and material-aware cubature scheme. Our solver is well-suited for simulating scenes with large material and geometric heterogeneities in real-time. This mammoth geometry is composed of 98,175 vertices and 531,565 tetrahedral elements and with a heterogenous composition of widely varying materials of muscles ($E= 5\times10^5$ Pa), joints ($E=1\times10^5$ Pa), and bone ($E=1\times10^{10}$ Pa). The resulting simulation runs at 120 frames per second (FPS).

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Ty Trusty, Otman Benchekroun, Eitan Grinspun, Danny M. Kaufman, David I. W. Levin. 2024-05-22. Subspace Mixed-FEM for Real-Time Heterogeneous Elastodynamics. https://arxiv.org/abs/2405.13730

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