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DTSTAMP:20260114T163642Z
LOCATION:Meeting Room C4.11\, Level 4 (Convention Centre)
DTSTART;TZID=Australia/Melbourne:20231214T122500
DTEND;TZID=Australia/Melbourne:20231214T124000
UID:siggraphasia_SIGGRAPH Asia 2023_sess131_papers_363@linklings.com
SUMMARY:Power Plastics: A Hybrid Lagrangian/Eulerian Solver for Mesoscale 
 Inelastic Flows
DESCRIPTION:Ziyin Qu (University of Pennsylvania, University of California
  Los Angeles); Minchen Li (University of California Los Angeles, Carnegie 
 Mellon University); Yin Yang (University of Utah); Chenfanfu Jiang (Univer
 sity of California Los Angeles); and Fernando de Goes (Pixar Animation Stu
 dios)\n\nWe propose a novel hybrid Lagrangian/Eulerian method for simulati
 ng inelastic materials that generates high-quality particle distributions 
 with strict volume control. At its core, our approach integrates an update
 d Lagrangian time discretization of continuum mechanics with the Power Par
 ticle-In-Cell geometric representation of continuum materials [Qu et al. 2
 022]. As a result, we represent material points as optimized density kerne
 ls that precisely track the varying particle volumes both spatially and te
 mporally. For efficient CFL-rate simulations, we implicitly time integrate
  the system with a non-linear Gauss-Seidel solver inspired by X-PBD [Mackl
 in et al. 2016], viewing Eulerian nodal velocities as primal variables. We
  demonstrate the efficacy and versatility of our method with mesoscale (10
 -100k grains) simulations of bubbles, sands, liquid, and foams.\n\nRegistr
 ation Category: Full Access\n\nSession Chair: Neil A. Dodgson (Victoria Un
 iversity of Wellington)\n\n
URL:https://asia.siggraph.org/2023/full-program?id=papers_363&sess=sess131
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