ABSTRACT
Guided waves have been the subject of a great deal of interest in the seismology and NDE communities since Lord Rayleigh proved that it was possible to propagate an acoustic wave along the surface of a semi-infinite, isotropic solid. A wide variety of guided wave motions have been identified including surface waves, plate waves, Love waves, and Stoneley waves. The propagation of guided waves in coated materials, or Love waves, has also been of some interest for anisotropic media. The dispersion curves associated with wave propagation in an isotropic medium with an isotropic coating layer can often be grouped into two distinct families—Rayleigh modes and Love modes. The direction of propagation is along a common symmetry axis and energy propagates in the direction of the wave normal. Wave propagation at arbitrary angles with respect to the fiber axis was considered.
