抄録
In this paper, thermo-electric-elastic fracture behavior of two parallel cracks m arbitrary positions of a piezoelectric material strip under thermo-electric loadings is considered. It is assumed that uniform temperatures and a uniform electric displacement are maintained over the stress-free boundaries, and the crack faces remain thermally and electrically insulated. Fourier transform techniques are used to reduce the mixed boundary value problems to two systems of singular integral equations. Numerical calculations are carried out, and detailed results are presented to illustrate the influence of the geometric parameters on the stress and electric displacement intensity factors.
