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| Implementation of 3D preprocessing program for material point method |
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| DOI：10.7511/jslx20083074 |
| KeyWord:meshless method,material point method,preprocessing,quadtree method |
| WANG Yu-xin SUN Ming ZHANG Jian-chen |
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| Abstract: |
| Meshless methods are applied to solve problems in explosion impact,fracture,crack expand and large deformation etc,the low numerical precision and remeshing could be overcome due to independence of mesh.As one of the effective numerical methods,the meshless methods are used to solve problems in solid mechanics.It is important that the preprocessing program is developed in numerical simulation of meshless methods.Based on object-oriented programming method,the 3D graphic interactive preprocessing program is developed for material point method by C and OpenGL.The quad-tree,scan and CSG methods are applied to discretize particles of MPM.To build a general preprocess system of the meshless methods,some robust methods are given. |
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