A refined global-local approach for evaluation of singular stress field based on scaled boundary finite element method
作者： Lin Pang , Gao Lin , Zhiqiang Hu
DOI: 10.1016/J.CAMSS.2017.03.006
关键词:
摘要: Abstract A refined global-local approach based on the scaled boundary finite element method (SBFEM) is proposed to improve accuracy of predicted singular stress field. The carried out in conjunction with two steps. First, entire structure analyzed by employing an arbitrary numerical method. Then, interested region, which contains singularity, re-solved using SBFEM placing scaling center right at point conditions evaluated from first step imposed along whole including side-faces. Benefiting semi-analytical nature SBFEM, field can be accurately without highly meshes. It provides FEM or other methods a rather simple and convenient way analysis. Numerical examples validate effectiveness dealing various kinds problems.
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