Partition of unity-based thermomechanical meshfree method for two-dimensional crack problems

被引：13
|
作者：
Wang, S. [1 ]
Zhang, H. [1 ]
机构：
[1] S China Univ Technol, State Key Lab Subtrop Bldg Sci, Guangzhou 510640, Guangdong, Peoples R China
来源：
ARCHIVE OF APPLIED MECHANICS | 2011年 / 81卷 / 10期
关键词：
Fracture; Meshfree; SPH; EFG; MPM; FREE GALERKIN METHODS; PARTICLE METHODS; THIN SHELL; MESHLESS APPROXIMATIONS; BOUNDARY-CONDITIONS; DYNAMIC FRACTURE; FINITE-ELEMENT; SHEAR BANDS; PROPAGATION; SIMULATIONS;
D O I：
10.1007/s00419-010-0487-7
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
We present a partition of unity-enriched element-free Galerkin method for thermoelastic two-dimensional crack problems. Therefore, the displacement field is enriched by the step enrichment. In the vicinity of the crack tip, the asymptotic branch enrichment functions commonly used in linear elastic fracture mechanics are employed. The same enrichment strategy is employed for the temperature field. Level set functions are used in order to model the crack surface. The accuracy of the method is demonstrated for three examples, one involves the crack propagation due to temperature and mixed traction-temperature loading conditions with complex curved crack paths.
引用
收藏
页码：1351 / 1363
页数：13
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