Real-time physical deformation and cutting of heterogeneous objects via hybrid coupling of meshless approach and finite element method

ABSTRACTThis paper advocates a method for real‐time physical deformation and arbitrary cutting simulation of heterogeneous objects with multi‐material distribution, whose originality centers on the tight coupling of domain‐specific finite element method (FEM) and material distance‐aware meshless app...

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Vydáno v:Computer animation and virtual worlds Ročník 25; číslo 3-4; s. 421 - 433
Hlavní autoři: Yang, Chen, Li, Shuai, Wang, Lili, Hao, Aimin, Qin, Hong
Médium: Journal Article
Jazyk:angličtina
Vydáno: Chichester Blackwell Publishing Ltd 01.05.2014
Wiley Subscription Services, Inc
Témata:
Computer simulation
Deformation
Dynamics
FEM
Finite element method
heterogeneous objects
Joining
Mathematical analysis
Mathematical models
meshless coupling
Meshless methods
physical simulation
Real time
ISSN:1546-4261, 1546-427X
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Shrnutí:ABSTRACTThis paper advocates a method for real‐time physical deformation and arbitrary cutting simulation of heterogeneous objects with multi‐material distribution, whose originality centers on the tight coupling of domain‐specific finite element method (FEM) and material distance‐aware meshless approach in a CUDA‐centric parallel simulation framework. We employ hierarchical hexahedron serving as basic building blocks for accurate material‐aware FEM simulation. Meanwhile, local meshless systems are designed to support cross‐FEM‐domain coupling and material‐sensitive propagation while respecting the regularity of finite elements. Directly benefiting from the structural regularity and uniformity of finite elements, our hybrid solution enables the local stiffness matrix pre‐computation and dynamic assembling, adaptive topological updating and precise cutting reconstruction. Moreover, our mathematically‐rigorous solver guarantees unconditional stableness. Experiments demonstrate the superiorities of our system. Copyright © 2014 John Wiley & Sons, Ltd. This paper advocates a novel method for real‐time, large‐scale physical deformation and arbitrary cutting simulation of heterogeneous objects with multi‐material distribution, whose originality centers on the tight coupling of domain‐specific finite element method and material distance‐aware meshless approach in a CUDA‐centric parallel simulation framework.
Bibliografie:ark:/67375/WNG-QBLKH70M-R
istex:6C5244E8A972AE98DE6E3DA4D633ED6FECD8A1A0
ArticleID:CAV1594
ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1546-4261
1546-427X
DOI:10.1002/cav.1594