Eccentric crack in a piezoelectric strip under electro-mechanical loading

We consider the problem of determining the singular stresses and electric f ields in a piezoelectric ceramic strip containing a Griffith eccentric crac k off the center line under anti-plane shear loading with the theory of lin ear piezoelectricity. Fourier transforms are used to reduce the problem to the solution of two pairs of dual integral equations, which are then expres sed to a Fredholm integral equation of the second kind. Numerical values on the stress intensity factor and the energy release rate are obtained, and the influences of the electric fields for piezoelectric ceramics are discus sed.