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X-LIC-LOCATION:Asia/Tokyo
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TZOFFSETFROM:+0900
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DTSTART:18871231T000000
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BEGIN:VEVENT
DTSTAMP:20250110T023313Z
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:Technical Papers\n\nZaili Tu, Chen Li, Zipeng Zhao, Long Liu, 
 Chenhui Wang, and Changbo Wang (East China Normal University  School of Co
 mputer Science and Technology) and Hong Qin (Stony Brook University)\n\nRe
 cent years have witnessed the rapid deployment of numerous physicsbased mo
 deling and simulation algorithms and techniques for fluids, solids, and th
 eir delicate coupling in computer animation. However, it still remains a c
 hallenging problem to model the complex elastic-viscoplastic behaviors dur
 ing fluid–solid phase transitions and facilitate their seamless interactio
 ns inside the same framework. In this article, we propose a practical meth
 od capable of simulating granular flows, viscoplastic liquids, elastic-pla
 stic solids, rigid bodies, and interacting with each other, to support nov
 el phenomena all heavily involving realistic phase transitions, including 
 dissolution, melting, cooling, expansion, shrinking, and so on. At the phy
 sics level, we propose to combine and morph von Mises with Drucker–Prager 
 and Cam–Clay yield models to establish a unified phasefield-driven EVP mod
 el, capable of describing the behaviors of granular, elastic, plastic, vis
 cous materials, liquid, non-Newtonian fluids, and their smooth evolution. 
 At the numerical level, we derive the discretization form of Cahn–Hilliard
  and Allen–Cahn equations with the material point method to effectively tr
 ack the phase-field evolution, so as to avoid explicit handling of the bou
 ndary conditions at the interface. At the application level, we design a n
 ovel heuristic strategy to control specialized behaviors via user-defined 
 schemes, including chemical potential, density curve, and so on. We exhibi
 t a set of numerous experimental results consisting of challenging scenari
 os to validate the effectiveness and versatility of the new unified approa
 ch. This flexible and highly stable framework, founded upon the unified tr
 eatment and seamless coupling among various phases, and effective numerica
 l discretization, has its unique advantage in animation creation toward no
 vel phenomena heavily involving phase transitions with artistic creativity
  and guidance.\n\nRegistration Category: Full Access, Full Access Supporte
 r\n\nLanguage Format: English Language\n\nSession Chair: Kui Wu (LightSpee
 d Studios)
URL:https://asia.siggraph.org/2024/program/?id=tog_109&sess=sess144
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