EFFECTS OF INHOMOGENEITY ON SURFACE-WAVES IN ANISOTROPIC MEDIA

This paper investigates the effects of anisotropy and inhomogeneity on surface waves in elastic media. Exponential variation in properties a re assumed for the elastic parameters and material density. The classi cal equations of motion for propagation of waves in an inhomogeneous t ransversely isotropic elastic solid are deduced. The equations of moti on for surface waves are derived and general surface waves are investi gated. This general theory is then utilized to investigate Rayleigh, L ove and Stoneley waves. Results obtained in the above cases reduce to the corresponding well-known classical results when inhomogeneity and anisotropy are not present. It is seen that inhomogeneity has signific ant effects on dispersion characteristics. Numerical calculations are included for Love waves and some conclusions have been drawn from the above calculations.