Two collinear interface cracks in magneto-electro-elastic composites

In this paper, the behavior of two symmetric interface cracks between two dissimilar magneto-electro-elastic composite half planes under anti-plane shear stress loading is investigated by Schmidt method for the permeable crack surface conditions. By using the Fourier transform, the problem can be solved with a set of triple integral equations in which the unknown variable is the jump of the displacements across the crack surfaces. In solving the triple integral equations, the jump of the displacements across the crack surface is expanded in a series of Jacobi polynomials. Numerical solutions of the stress intensity factor are given. The relations among the electric filed, the magnetic flux and the stress field can be obtained. (C) 2004 Elsevier Ltd. All rights reserved.