INTERNATIONAL JOURNAL OF ENGINEERING, SCIENCE AND - Volume 5, Issue 2 , June 2016

Pages: 118-132
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EFFECT OF IMPERFECT INTERFACE ON PLANE WAVE PROPAGATION AT MICROPOLAR VISCOELASTIC SOLID/FLUID SATURATED INCOMPRESSIBLE POROUS SOLID

Author: Vinod Kaliraman

Category: Engineering, Science and Mathematics

Abstract:

In this paper, the reflection and transmission of plane waves from imperfect interface separating a micropolar viscoelastic solid half space and a fluid saturated incompressible porous solid half space is studied. A longitudinal wave (P-wave) or transverse wave (SVwave) impinges obliquely at the interface. Amplitude ratios for various reflected and transmitted waves have been obtained with help of boundary conditions at the interface. Then these amplitude ratios have been computed numerically for a specific model and results thus obtained are shown graphically with angle of incidence of incident wave. It is found that these amplitude ratios depend on angle of incidence of the incident wave, imperfect interface as well as on the properties of media. From the present investigation, a special case when fluid saturated porous half space reduces to empty porous solid and micropolar viscoelastic solid half space reduces to micropolar elastic solid has also been deduced and discussed with the help of graphs.

Keywords: Micropolar viscoelastic solid, porous, reflection, transmission, longitudinal wave, transverse wave, amplitude ratios, empty porous solid.