Generation of SH-type waves due to shearing stress discontinuity in an anisotropic layer overlying an initially stressed elastic half-space

Abstract

The paper investigates the generation of SH-type waves due to a sudden application of a stress discontinuity which moves after creation at the anisotropic layer of finite thickness overlying an initially stressed isotropic half-space. The displacements are obtained in exact form by the method due to Cagniard modified by de Hoop. Two cases of shearing stress discontinuities are considered. The numerical results are obtained for a particular model and discussed by plotting graphs for displacement component with the elapsed time of the disturbance for different values of initial stress and also for different values of initial time at which pulses arrive.

Generation and Propagation of SH Waves Due to Shearing Stress Discontinuity in Linear Orthotropic Viscoelastic Layered Structure

“…Later on, Pal and Mandal [23] illustrated the generation of SH-type waves due to shearing stress discontinuity in sandy layer overlying an isotropic and inhomogeneous elastic half-space using this method. Recently, Kumar and Mandal [16] gave analytical solution for generation of SH-type waves due to shearing stress discontinuity in an anisotropic layer overlying an initially stressed elastic half-space. However, no attempt has been made till date to study shearing-stress discontinuity in linear orthotropic viscoelastic model using the aforementioned method.…”