An improved complex variable element-free Galerkin method for two-dimensional elasticity problems
2012; IOP Publishing; Volume: 21; Issue: 2 Linguagem: Inglês
10.1088/1674-1056/21/2/020204
ISSN2058-3834
AutoresFu-Nong Bai, Dongming Li, Jianfei Wang, Yumin Cheng,
Tópico(s)Railway Engineering and Dynamics
ResumoIn this paper, the improved complex variable moving least-squares (ICVMLS) approximation is presented. The ICVMLS approximation has an explicit physics meaning. Compared with the complex variable moving least-squares (CVMLS) approximations presented by Cheng and Ren, the ICVMLS approximation has a great computational precision and efficiency. Based on the element-free Galerkin (EFG) method and the ICVMLS approximation, the improved complex variable element-free Galerkin (ICVEFG) method is presented for two-dimensional elasticity problems, and the corresponding formulae are obtained. Compared with the conventional EFG method, the ICVEFG method has a great computational accuracy and efficiency. For the purpose of demonstration, three selected numerical examples are solved using the ICVEFG method.
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