Integrating Mesh and Meshfree Methods for Physics-Based Fracture and Debris Cloud Simulation

Zhang, Nan; Zhou, Xiangmin; Sha, Desong; Yuan, Xiaoru; Tamma, Kumar; Chen, Baoquan

Integrating Mesh and Meshfree Methods for Physics-Based Fracture and Debris Cloud Simulation

Files

145-154.pdf (487.23 KB)

pbg2006.mp4 (9.72 MB)

Date

2006

Authors

Zhang, Nan
Zhou, Xiangmin
Sha, Desong
Yuan, Xiaoru
Tamma, Kumar
Chen, Baoquan

Publisher

The Eurographics Association

Abstract

We present a hybrid framework for physics-based simulation of fracture and debris clouds. Previous methods mainly consider bulk fractures. However, in many situations, small fractured pieces and debris are visually important. Our framework takes a hybrid approach that integrates both tetrahedron-based finite element and particlebased meshfree methods. The simulation starts with a tetrahedral mesh. When the damage of elements reaches a damage failure threshold, the associated nodes are converted into mass-based particles. Molecular dynamics is used to model particle motion and interaction with other particles and the remaining elements. In rendering, we propose an algorithm of dynamically extracting a polygonal boundary surface for the damaged elements and particles. Our framework is simple, accurate, and efficient. It avoids the remeshing and stability problems of pure mesh-based techniques and pure meshfree methods and offers high visual realism.

        @inproceedings{:10.2312/SPBG/SPBG06/145-154
,
booktitle = {Symposium on Point-Based Graphics
},
editor = {Mario Botsch and Baoquan Chen and Mark Pauly and Matthias Zwicker
},
title = {{Integrating Mesh and Meshfree Methods for Physics-Based Fracture and Debris Cloud Simulation
}},
author = {Zhang, Nan and 
Zhou, Xiangmin and 
Sha, Desong and 
Yuan, Xiaoru and 
Tamma, Kumar and 
Chen, Baoquan
},
year = {2006
},
publisher = {The Eurographics Association
},
ISSN = {1811-7813
},
ISBN = {3-905673-32-0
},
DOI = {/10.2312/SPBG/SPBG06/145-154
}
}