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个人信息Personal Information
教授
博士生导师
硕士生导师
性别：男
毕业院校：德国汉诺威大学
学位：博士
所在单位：力学与航空航天学院
学科：工程力学. 计算力学. 生物与纳米力学
电子邮箱：zhanghw@dlut.edu.cn
Stress singularity analysis at crack tip on bi-material interfaces based on Hamiltonian principle
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论文类型：期刊论文
发表时间：1996-06-01
发表刊物：ACTA MECHANICA SOLIDA SINICA
收录刊物：SCIE、Scopus
卷号：9
期号：2
页面范围：124-138
ISSN号：0894-9166
关键字：interface crack; fracture mechanics; Hamiltonian principle
摘要：In this paper, the stress singularity analysis at the crack tip on elastic bi-material interfaces is considered. The governing equations of plane elasticity In sectorial domain are derived to be in Hamiltonian form via variable substitution and variational principle. The methods of separation of variables and conjugate symplectic eigen-function expansion are developed to solve the equations in sectorial domain. The general formulae for the solution of stress singularities at the crack tip on bi-material interfaces are put forward, and a new solution technique for fracture problems is presented.