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BEGIN:VEVENT
DTSTAMP:20260114T163631Z
LOCATION:Darling Harbour Theatre\, Level 2 (Convention Centre)
DTSTART;TZID=Australia/Melbourne:20231212T093000
DTEND;TZID=Australia/Melbourne:20231212T124500
UID:siggraphasia_SIGGRAPH Asia 2023_sess209_papers_726@linklings.com
SUMMARY:Subspace Mixed Finite Elements for Real-Time Heterogeneous Elastod
 ynamics
DESCRIPTION:Ty Trusty, Otman Benchekroun, and Eitan Grinspun (University o
 f Toronto); Danny M. Kaufman (Adobe, University of Toronto); and David I.W
 . Levin (University of Toronto)\n\nReal-time elastodynamic solvers are wel
 l-suited for the rapid simulation of ho\nmogeneous elastic materials, with
  high-rates generally enabled by aggressive\nearly termination of timestep
  solves. Unfortunately, the introduction of strong\ndomain heterogeneities
  can make these solvers slow to converge. Stopping the\nsolve short create
 s visible damping artifacts and rotational errors. To address\nthese chall
 enges we develop a reduced mixed finite element solver that pre\nserves ri
 ch rotational motion, even at low-iteration regimes. Specifically, this\ns
 olver augments time-step solve optimizations with auxillary stretch degree
 s\nof freedom at mesh elements, and maintains consistency with the primary
 \npositional degrees of freedoms at mesh nodes via explicit constraints. W
 e make\nuse of a Skinning Eigenmode subspace for our positional degrees of
  freedom.\nWe accelerate integration of non-linear elastic energies with a
  cubature approx\nimation, placing stretch degrees of freedom at cubature 
 points. Across a wide\nrange of examples we demonstrate that this subspace
  is particularly well suited\nfor heterogeneous material simulation. Our r
 esulting method is a subspace\nmixed finite element method completely deco
 upled from the resolution of the\nmesh that is well-suited for real-time s
 imulation of heterogeneous domains.\n\nRegistration Category: Full Access,
  Enhanced Access, Trade Exhibitor, Experience Hall Exhibitor\n\n
URL:https://asia.siggraph.org/2023/full-program?id=papers_726&sess=sess209
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