Abstract
In this analysis, we deal with an unsteady problem of an edge crack in a semi-infinite, transversely isotropic, thermopiezoelastic material under heat loading and electric displacement by means of potential function method and Laplace transform method. The problem is reduced to a singular integral equation. The thermal stress intensity factor at the crack edge is obtained. The effect of the width of the temperature load on the thermal stress intensity factor is examined. From numerical calculations, it is found that the peak of thermal stress intensity factor is found in transient state and that application of electric displacement can control thermal stress intensity factor.
