A finite length crack propagating along the interface of two dissimilar magnetoelectroelastic materials

The dynamic problem of an anti-plane shear crack of finite length moving with a constant velocity along the interface of two dissimilar magnetoelectroelastic materials is investigated. Using the Fourier transform method, the associated mixed boundary-value problem is reduced to solving dual integral equations. Explicit-form solutions for the entire-plane dynamic magnetoelectroelastic field and the dynamic field intensity factors at the crack tip are determined. Based on the maximum of the stress sigma(Oz), the crack branch or kinking angle is analyzed. Numerical examples demonstrate the influences of the properties of materials, applied electric loading, applied magnetic loading and the crack running velocity on crack propagation orientation. (c) 2006 Elsevier Ltd. All rights reserved.