title: A Green's function method for surface acoustic waves in functionally graded materials.
abstract: Acoustic wave propagation in anisotropic media with one-dimensional inhomogeneity is discussed. Using a Green's function approach, the wave equation with inhomogeneous variation of elastic property and mass density is transformed into an integral equation, which is then solved numerically. The method is applied to find the dispersion relation of surface acoustic waves for a medium with continuously or discontinuously varying elastic property and mass density profiles.
authors.affiliation: Division of Applied Physics, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan. omatsuda@eng.hokudai.ac.jp
authors.forename: Osamu
authors.initials: O
authors.lastname: Matsuda
authors.forename: Christ
authors.initials: C
authors.lastname: Glorieux
mesh_terms: D000162:Acoustics; D004548:Elasticity; D008433:Mathematics; D008962:Models, Theoretical; D055585:Physical Phenomena; D010825:Physics; D011840:Radiation, Nonionizing; D013499:Surface Properties