• Reflection ofP andSV waves at the free surface of a monoclinic elastic half-space

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      https://www.ias.ac.in/article/fulltext/jess/111/04/0401-0412

    • Keywords

       

      Anisotropic medium; elastic waves; monoclinic half-space; reflection coefficients

    • Abstract

       

      The propagation of plane waves in an anisotropic elastic medium possessing monoclinic symmetry is discussed. The expressions for the phase velocity ofqP andqSV waves propagating in the plane of elastic symmetry are obtained in terms of the direction cosines of the propagation vector. It is shown that, in general,qP waves are not longitudinal andqSV waves are not transverse. Pure longitudinal and pure transverse waves can propagate only in certain specific directions. Closed-form expressions for the reflection coefficients ofqP andqSV waves incident at the free surface of a homogeneous monoclinic elastic half-space are obtained. These expressions are used for studying numerically the variation of the reflection coefficients with the angle of incidence. The present analysis corrects some fundamental errors appearing in recent papers on the subject.

    • Author Affiliations

       

      Sarva Jit Singh1 Sandhya Khurana1

      1. Department of Mathematics, Maharshi Dayanand University, Rohtak - 124 001, India
    • Dates

       
  • Journal of Earth System Science | News

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