Dynamic antiplane behaviour of interacting cracks in a piezoelectric medium

摘要

In this article, we examine the dynamic interactionbetween two cracks in a piezoelectric medium under incidentantiplane shear wave loading. The theoretical formulationsgoverning the steady-state problem are based upon the use ofintegral transform techniques and a self-consistent iterativemethod. The resulting dynamic stress intensity factors at theinteracting cracks are obtained by solving the appropriate singularintegral equations using Chebyshev Polynomials at differentloading frequencies. Numerical examples are provided to showthe effect of the geometry of the cracks, the piezoeletric constantsof the material and the frequency of the incident wave upon thedynamic stress intensity factor of the cracks.