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论文类型：期刊论文

发表时间：2017-08-01

发表刊物：APPLIED MATHEMATICS AND MECHANICS-ENGLISH EDITION

收录刊物：SCIE、EI、Scopus

卷号：38

期号：8

页面范围：1043-1058

ISSN号：0253-4827

关键字：symplectic approach; magnetoelectroelastic bimaterial; interface crack; imperfect interface; generalized intensity factor

摘要：A Hamiltonian-based analytical method is used to study the mode III interface cracks in magnetoelectroelastic bimaterials with an imperfect interface. By introducing an unknown vector, the governing equations are reformulated in sets of first-order ordinary differential equations. Using separation of variables, eigensolutions in the symplectic space are obtained. An exact solution of the unknown vector is obtained and expressed in terms of symplectic eigensolutions. Singularities of mechanical, electric, and magnetic fields are evaluated with the generalized intensity factors. Comparisons are made to verify accuracy and stability of the proposed method. Numerical examples including mixed boundary conditions are given.