Interface integral BEM for solving multi-medium elasticity problems

被引：34
|
作者：
Gao, Xiao-Wei [1 ]
Yang, Kai [2 ]
机构：
[1] Dalian Univ Technol, Fac Vehicle Engn & Mech, Dalian 116024, Peoples R China
[2] Southeast Univ, Dept Engn Mech, Sch Civil Engn, Nanjing 210096, Peoples R China
来源：
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 2009年 / 198卷 / 15-16期
基金：
中国国家自然科学基金;
关键词：
Multi-medium problems; Boundary-interface integral equation; Boundary element method; Nonhomogeneous elastic problem;
D O I：
10.1016/j.cma.2008.12.007
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this paper, boundary integral equations for multi-medium elasticity problems are derived from the boundary-domain integral equations for single medium elasticity problems with varying shear modulus. The new formulations derived make up for the lack of boundary integral equations in solving multi-medium problems using the boundary element method. The effect of nonhomogeneity between adjacent materials is embodied by the interface integrals appearing in the integral equation and including the differences of adjacent material properties. Comparing to conventional multi-domain boundary element methods, the presented Interface Integral BEM (IIBEM) approach is more efficient in computational time, data preparing, and program coding. Numerical examples are given to verify the correctness of the derived boundary-interface integral equations. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码：1429 / 1436
页数：8
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