Propagation of Torsional Surface Waves under the Effect of Irregularity and Initial Stress

Shishir Gupta, Dinesh K. Majhi, Sumit K. Vishwakarma, Santimoy Kundu

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DOI: 10.4236/am.2011.212207                

Abstract

The present paper has been framed to study the influence of irregularity, initial stress and porosity on the propagation of torsional surface waves in an initially stressed anisotropic poro-elastic layer over a semi-infinite heterogeneous half space with linearly varying rigidity and density due to irregularity at the interface. The irregularity has been taken in the half-space in the form of a parabola. It is observed that torsional sur- face waves propagate in this assumed medium. In the absence of irregularity the velocity of torsional surface wave has been obtained. Further, it has been seen that for a layer over a homogeneous half space, the velo- city of torsional surface waves coincides with that of Love waves.

Keywords

Irregularity, Torsional Surface Waves, Anisotropic, Initial Stress

Conflicts of Interest

The authors declare no conflicts of interest.

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