BEM-FEM coupling for 3D fracture mechanics applications

被引:21
|
作者
Frangi, A
Novati, G
机构
[1] Politecn Milan, Dept Struct Engn, I-20133 Milan, Italy
[2] Univ Trent, Dept Mech & Struct Engn, I-38050 Trento, Italy
关键词
fracture mechanics; BEM; FEM; coupling;
D O I
10.1007/s00466-003-0510-8
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Attention is here focused on the implementation of a coupled BEM-FEM procedure employing the BE method for the modelling of the near-crack region and the FEM for the far-field, where no singularities in the stress field are expected to arise. The symmetric variational version of the BE method is utilized, allowing to obtain a final linear system endowed with a symmetric matrix. With respect to 3D linear elastic fracture mechanics, the code developed is used to evaluate stress intensity factors for some benchmarks and simulate fracture propagation.
引用
收藏
页码:415 / 422
页数:8
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