© Hindawi Publishing Corp. REFLECTION AND TRANSMISSION OF ELASTIC WAVES AT VISCOUS LIQUID/MICROPOLAR ELASTIC SOLID INTERFACE

Abstract. Amplitude ratios of various reflected and transmitted elastic waves from a plane interface separating a viscous liquid half-space and a micropolar elastic solid half-space, are obtained in two cases (i) when longitudinal wave propagating through the solid half-space is made incident at the interface and (ii) when “coupled-wave ” propagating through the solid half-space is made incident at the interface. These amplitude ratios have been computed numerically for a specific model and results obtained are presented graphically. It is found that these amplitude ratios depend on the angle of incidence of the incident wave and the effect of viscosity of the liquid on amplitude ratios is noticed. The problem studied by Tomar and Kumar (1995) has been reduced as a special case of our problem. 2000 Mathematics Subject Classification. 74F10, 74J20, 74B99. 1. Introduction. Classica