Numerical analysis of the dispersion of acoustic Rayleigh waves in a Functionally Graded Piezoelectric half-Space

Considerable attention has been given to the study of propagation surface waves in order improve efficiency and lifetime acoustic wave devices such as transducers. In this paper, an investigation Rayleigh functionally graded piezoelectric material is presented. The assumed take place a transversely isotropic half-space with properties varying continuously along thickness direction. obtained results have shown that dispersive can propagate on FGPM characteristics depend variation parameters. Based dispersion relations, phase velocity for both electrically open shorted cases at free deduced. displacement magnitudes corresponding decay variations are plotted discussed.