Propagation of a mode-Ill interfacial crack in a piezoelectric-piezomagnetic bi-material

被引：26
|
作者：
Chen, Hao-sen [4 ]
Wei, Wei-yi [4 ]
Liu, Jin-xi [1 ]
Fang, Dai-ning [2 ,3 ]
机构：
[1] Shijiazhuang Tiedao Univ, Dept Engn Mech, Shijiazhuang 050043, Peoples R China
[2] Peking Univ, LTCS, Beijing 100871, Peoples R China
[3] Peking Univ, Coll Engn, Beijing 100871, Peoples R China
[4] Tsinghua Univ, Dept Engn Mech, Beijing 100084, Peoples R China
来源：
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES | 2012年 / 49卷 / 18期
基金：
中国国家自然科学基金;
关键词：
Dynamic fracture; Piezoelectric-piezomagnetic composite; Intensity factors; Universal functions; Bleustein-Gulyaev wave; Generalized Maerfeld-Tournois wave; DYNAMIC FRACTURE; TRANSIENT-RESPONSE; MOVING CRACK; WAVES; SCATTERING; SYMMETRY; BEHAVIOR;
D O I：
10.1016/j.ijsolstr.2012.05.013
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The transient response of a semi-infinite mode-Ill interfacial crack propagating between piezoelectric (PE) and piezomagnetic (PM) half spaces is investigated in this paper. The integral transform method together with the Wiener-Hopf and Cagniard-de Hoop techniques is used to solve the mixed boundary value problem under consideration. The existence of generalized Maerfeld-Tournois interfacial wave is discussed and the solutions of the coupled fields are derived for four different cases of bulk shear wave velocity. The dynamic intensity factors of stress, electric displacement and magnetic induction as well as energy release rate (ERR) are obtained in explicit forms. The numerical results of the universal functions and dimensionless ERR for several different material combinations are presented and discussed in details. It is found that the Bleustein-Gulyaev (generalized Maerfeld-Tournois) waves dominate the dynamic characteristics of the interfacial crack propagation in PE-PM bi-material. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2547 / 2558
页数：12
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