Orthogonal meshless finite volume method applied to elastodynamic crack problems

被引：0
作者：
M. R. Moosavi
机构：
[1] The University of Arizona,Aerospace and Mechanical Engineering Department
来源：
International Journal of Fracture | 2013年 / 179卷
关键词：
Meshless method; Finite volume method; Orthogonal moving least square; Elastodynamics; Crack;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An orthogonal meshless finite volume method has been presented to solve some elastodynamic crack problems. An orthogonal weighted basis function is used to construct shape function so there is no problem of singularity in this new form. In this work, for three-dimensional dynamic fracture problems, a new displacement function is used at the tip of the crack to give a new OMFVM. When the new OMFVM is used, the singularity of the stresses at the tip of the crack can be shown to be better than that in the primal OMFVM. High computational efficiency and precision are other benefits of the method. Solving some sample crack problems of thin-walled structures show a good performance of this method.
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页码：1 / 7
页数：6
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