The approximate secular of the rayleigh wave propagating in an orthotropic elastic half-space coated with a thin piezoelectric layer

Abstract

    This paper investigates the propagating of the Raleigh wave in an orthotropic elastic half-space coated with a thin elastic layer. The layer and the half-space are in welded contact with each other with supposing the layer is piezoelectric and the half-space may be compressible. The main aim of the paper is to give explicit secular equations of the Rayleigh wave traveling in the materials. By applying the effective boundary method, approximate secular equations of third-order in terms of the dimensionless were obtained. It is shown that these approximate secular equations have high accuracy and will be useful in practical application