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Animation of crack propagation by means of an extended multi-body solver for the material point method
DreamWorks Animation, Glendale, USA.
Linköping University, Department of Physics, Chemistry and Biology, Theoretical Physics. Linköping University, Faculty of Science & Engineering.ORCID iD: 0000-0002-5571-0814
DreamWorks Animation, Glendale, USA.
2017 (English)In: Computers & graphics, ISSN 0097-8493, E-ISSN 1873-7684, Vol. 69, p. 131-139Article in journal (Refereed) Published
Abstract [en]

We propose a multi-body solver that extends the Material Point Method (MPM) to simulate cracks in computer animation. We define cracks as the intersection between pieces of bodies created by a pre-fracture process and held together by massless particle constraints (glue particles). These pieces are simulated using a MPM multi-body solver extended by us to efficiently handle N-body collisions. Benefits of the present work include (1) low computational overhead compared to a normal MPM algorithm; (2) good scaling in three dimensions due to our use of sparse grids for background computations; (3) allowing for an easy and controllable setup phase to simulate a desired material failure mode, which is especially useful for computer animation. 

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 69, p. 131-139
Keyword [en]
Contact; Cracks; Material point method
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Other Physics Topics
Identifiers
URN: urn:nbn:se:liu:diva-144188DOI: 10.1016/j.cag.2017.10.005ISI: 000418980500014OAI: oai:DiVA.org:liu-144188DiVA, id: diva2:1172200
Available from: 2018-01-09 Created: 2018-01-09 Last updated: 2018-01-22

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