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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：大连理工大学
学位：博士
所在单位：力学与航空航天学院
学科：固体力学. 工程力学. 计算力学
办公地点：海宇楼506
联系方式：Email：zhouzh@dlut.edu.cn
电子邮箱：zhouzh@dlut.edu.cn
Evaluation of the stress singularity of an interface V-notch in a bimaterial plate under bending
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论文类型：期刊论文
发表时间：2016-12-01
发表刊物：ENGINEERING FRACTURE MECHANICS
收录刊物：SCIE、EI、Scopus
卷号：168
页面范围：11-25
ISSN号：0013-7944
关键字：Finite element discretized symplectic method; Interface fracture; Singularity; Stress intensity factor; Asymptotic analyses
摘要：An interface V-shape notch under bending loads is evaluated by a finite element discretized symplectic method. The stress intensity coefficients are extended to represent the singularities of notch-tip stress fields. The bimaterial notched plate is first meshed by conventional finite elements. Analytical symplectic eigenvectors are then used as the global interpolation functions so that the evaluation of stress singularities is reduced to solving undetermined coefficients of the symplectic series. Explicit expressions of stress fields and stress intensity coefficients are finally achieved simultaneously. Numerical examples are presented to validate the accuracy of the proposed method and new results are also given. (C) 2016 Elsevier Ltd. All rights reserved.