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An exact and complete solution of the problem of a half-plane crack in an infinite transverselyisotropic piezoelectric body is presented.The upper and lower crack faces are assumed to be loaded antisym-metrically by a couple of tangential point forces in opposite directions.The solution is derived through a lim-iting procedure from that of a penny-shaped crack.The expressions for the electroelastic field are given interms of elementary functions.Finally,the numerical results of the second and third mode stress intensityfactors k_2 and k_3 of piezoelectric materials and elastic materials are compared in figures.
An exact and complete solution of the problem of a half-plane crack in an infinite transversely isotropic piezoelectric body is presented. The upper and lower crack faces are assumed to be loaded antisym-metrically by a couple of tangential point forces in opposite directions. Solution is derived through a lim-iting procedure from that of a penny-shaped crack. The expressions for the electroelastic field are given interms of elementary functions. Finally, the numerical results of the second and third mode stress intensity factors k_2 and k_3 of piezoelectric materials and elastic materials are compared in figures.