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TZID:Asia/Tokyo
X-LIC-LOCATION:Asia/Tokyo
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TZOFFSETFROM:+0900
TZOFFSETTO:+0900
TZNAME:JST
DTSTART:18871231T000000
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DTSTAMP:20260817T171530Z
LOCATION:Hall B7 (1)\, B Block\, Level 7
DTSTART;TZID=Asia/Tokyo:20241206T113100
DTEND;TZID=Asia/Tokyo:20241206T114300
UID:siggraphasia_SIGGRAPH Asia 2024_sess144_tog_109@linklings.com
SUMMARY:A Unified MPM Framework supporting Phase-field Models and Elastic-
 viscoplastic Phase Transition
DESCRIPTION:Zaili Tu, Chen Li, Zipeng Zhao, Long Liu, Chenhui Wang, and Ch
 angbo Wang (East China Normal University  School of Computer Science and T
 echnology) and Hong Qin (Stony Brook University)\n\nRecent years have witn
 essed the rapid deployment of numerous physicsbased modeling and simulatio
 n algorithms and techniques for fluids, solids, and their delicate couplin
 g in computer animation. However, it still remains a challenging problem t
 o model the complex elastic-viscoplastic behaviors during fluid–solid phas
 e transitions and facilitate their seamless interactions inside the same f
 ramework. In this article, we propose a practical method capable of simula
 ting granular flows, viscoplastic liquids, elastic-plastic solids, rigid b
 odies, and interacting with each other, to support novel phenomena all hea
 vily involving realistic phase transitions, including dissolution, melting
 , cooling, expansion, shrinking, and so on. At the physics level, we propo
 se to combine and morph von Mises with Drucker–Prager and Cam–Clay yield m
 odels to establish a unified phasefield-driven EVP model, capable of descr
 ibing the behaviors of granular, elastic, plastic, viscous materials, liqu
 id, non-Newtonian fluids, and their smooth evolution. At the numerical lev
 el, we derive the discretization form of Cahn–Hilliard and Allen–Cahn equa
 tions with the material point method to effectively track the phase-field 
 evolution, so as to avoid explicit handling of the boundary conditions at 
 the interface. At the application level, we design a novel heuristic strat
 egy to control specialized behaviors via user-defined schemes, including c
 hemical potential, density curve, and so on. We exhibit a set of numerous 
 experimental results consisting of challenging scenarios to validate the e
 ffectiveness and versatility of the new unified approach. This flexible an
 d highly stable framework, founded upon the unified treatment and seamless
  coupling among various phases, and effective numerical discretization, ha
 s its unique advantage in animation creation toward novel phenomena heavil
 y involving phase transitions with artistic creativity and guidance.\n\nRe
 gistration Category: Full Access, Full Access Supporter\n\nLanguage Format
 : English Language\n\nSession Chair: Kui Wu (LIGHTSPEED)\n\n
URL:https://asia.siggraph.org/2024/program/?id=tog_109&sess=sess144
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