Tran Thanh Tuan, Tran Ngoc Trung

In this paper, the secular equation of Rayleigh suriface waves propagating in an orthotropic layered half-space is derived by the matrix method, AU the layers and the half- space are assumed to have identical prindple axes. The explicit form of the matrizant for each layer is obtained by the Sylvester's theorem. The derived secular equation takes only real values and depends only on the dimensionless variables and dimensionless material parameters. Hence, it is convenient in numerical calculation.