Diffraction of SH-waves by a Griffith crack in an infinite transversely orthotropic medium

This paper deals with the diffraction of SH-waves by a finite Griffith crac k located on a symmetric surface of an infinite transversely orthotropic me dium. The Fourier transform technique [1] has been used to reduce the elast odynamic problem to the solution of a set of integral equations. These inte gral equations have been solved by using the finite Hilbert transform techn ique and Cook's result [2]. The stress intensity factor has been derived fo r low frequency vibration. (C) 1998 Elsevier Science Ltd. All rights reserv ed.