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Fracture Patterns Design for Anisotropic Models with the Material Point Method
Cao,Wei1; Lyu,Luan1,2; Ren,Xiaohua4; Zhang,Bob1; Yang,Zhixin1,2; Wu,Enhua1,3
2020-10-01
Source PublicationComputer Graphics Forum
ISSN0167-7055
Volume39Issue:7Pages:93-104
AbstractPhysically plausible fracture animation is a challenging topic in computer graphics. Most of the existing approaches focus on the fracture of isotropic materials. We proposed a frame-field method for the design of anisotropic brittle fracture patterns. In this case, the material anisotropy is determined by two parts: anisotropic elastic deformation and anisotropic damage mechanics. For the elastic deformation, we reformulate the constitutive model of hyperelastic materials to achieve anisotropy by adding additional energy density functions in particular directions. For the damage evolution, we propose an improved phase-field fracture method to simulate the anisotropy by designing a deformation-aware second-order structural tensor. These two parts can present elastic anisotropy and fractured anisotropy independently, or they can be well coupled together to exhibit rich crack effects. To ensure the flexibility of simulation, we further introduce a frame-field concept to assist in setting local anisotropy, similar to the fiber orientation of textiles. For the discretization of the deformable object, we adopt a novel Material Point Method(MPM) according to its fracture-friendly nature. We also give some design criteria for anisotropic models through comparative analysis. Experiments show that our anisotropic method is able to be well integrated with the MPM scheme for simulating the dynamic fracture behavior of anisotropic materials.
KeywordCCS Concepts Physical simulation • Computing methodologies → Animation
DOI10.1111/cgf.14129
URLView the original
Language英语
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Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorYang,Zhixin
Affiliation1.FST,University of Macau,Macao
2.SKL-IOTSC,University of Macau,Macao
3.SKLCS,IOS/Chinese Academy of Sciences(CAS),University of CAS,China
4.Tencent Youtu,China
First Author AffilicationUniversity of Macau
Corresponding Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Cao,Wei,Lyu,Luan,Ren,Xiaohua,et al. Fracture Patterns Design for Anisotropic Models with the Material Point Method[J]. Computer Graphics Forum,2020,39(7):93-104.
APA Cao,Wei,Lyu,Luan,Ren,Xiaohua,Zhang,Bob,Yang,Zhixin,&Wu,Enhua.(2020).Fracture Patterns Design for Anisotropic Models with the Material Point Method.Computer Graphics Forum,39(7),93-104.
MLA Cao,Wei,et al."Fracture Patterns Design for Anisotropic Models with the Material Point Method".Computer Graphics Forum 39.7(2020):93-104.
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