BAO Zhongyou, YU Xuewen

(Shcool of civil Englisheering and Architecture, Eas t China J iaotong Univers ity,Nanchang 330013)

Abstract: The electromechanical fields of two dissimilar piezoelectric materials containing an interface edge crack under antiplane mechanical loads and in-plane electrical loads are analyzed. A general solution and the s tress intens ity factor are obtained in term of series expansion. The unknown cons tants are determined by boundary collocation method. Numeral results show that, under shear loading conditions,the s tres s intens ity factor is independent of applied electric displacement and electric field.

Keywords: piezoelectric materials , mode - Ⅲ interface edge crack, boundary collocation method, general solution, stress intensity factor