406 SPH法による3次元クラック進展解析(OS10.メッシュフリー/粒子法とその関連技術(2),オーガナイズドセッション)

概要

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The SPH (Smoothed Particle Hydrodynamics) theory is one of the meshless scheme, therefore it has several remarkable characteristics and is powerful for the problems which are unresolvable by traditional methods as FEM or FDM, Among all, the crack propagation problem is hard to treated by the traditional methods because the complicated crack path is unable to introduced into the solid material because of the mesh structure of the FEM model. On the contrary, by using the SPH method the crack path is easily introduced into materials and the fracture process is analyzed and visible using CG techniques. In this study 2 and 3 dimensional crack propagation analyses are performed. The fracture path is determined using elastic fracture mechanics and elastic plastic fracture mechanics. The results show the good appearances of fracture of solid materials in 3 dimensions.
一般社団法人日本機械学会の論文
2008-11-01