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个人信息Personal Information
教授
博士生导师
硕士生导师
任职 : 国家重大专项专家组成员、教育部热防护专业组组长、国际华人计算力学协会理事、中国航空学会理事、中国航空学会强度与设计专业委员会委员、国际边界单元法协会会员、教育部高等学校航空航天类专业教学指导委员会委员
性别：男
毕业院校：Glasgow University
学位：博士
所在单位：力学与航空航天学院
办公地点：海宇楼403A
联系方式：0411-84706332
电子邮箱：xwgao@dlut.edu.cn
Interface integral BEM for solving multi-medium elasticity problems
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论文类型：期刊论文
发表时间：2009-03-15
发表刊物：COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
收录刊物：SCIE、EI
卷号：198
期号：15-16
页面范围：1429-1436
ISSN号：0045-7825
关键字：Multi-medium problems; Boundary-interface integral equation; Boundary element method; Nonhomogeneous elastic problem
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.