Numerical propagation of dynamic cracks using X-FEM

被引：0
|
作者：
Nistor, Ionel [1 ]
Pantale, Olivier [1 ]
Caperaa, Serge [1 ]
机构：
[1] Ecole Natl Ingn Tarbes, Lab Genie Prod, 47 Av dAzereix,BP 1629, F-65016 Tarbes cedex, France
来源：
EUROPEAN JOURNAL OF COMPUTATIONAL MECHANICS | 2007年 / 16卷 / 02期
关键词：
partition of unity; extended finite element method; dynamic crack propagation; cohesive model;
D O I：
10.3166/remn.16.183-198
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
This paper presents an application of the eXtended Finite Element Method for numerical modeling of the dynamic cracks propagation. The numerical cracks representation is adapted to the time-dependent mechanical formulation, using the Heaviside step function for completely cutted elements and the cohesive model for crack tips. In order to find the propagation parameters, a crack evolution model is proposed. The numerical implementation is achieved in new explicit FE module. A numerical example is proposed for proving the computational efficiency of this new module.
引用
收藏
页码：183 / 198
页数：16
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