Propagation of Love Waves in the Orthotropic Layer/Functionally Graded Piezoelectric Half-Space

Abstract

Abstract: This paper investigated Love waves propagating in the layered half-space structure consisting of an orthotropic layer and a functionally graded piezoelectric halfspace. The interface conditions of the layered halfspace structure are perfect and imperfect. The material properties of the piezoelectric halfspaces vary exponentially in the direction perpendicular to the interfaces. Based on the dispersion equations, the numerical examples were presented to show the effects of variations of material properties, the cut angle of the orthotropic material and combined effects of the imperfect interface on the phase velocity. The obtained results are useful for the application of functionally graded piezoelectric materials to acoustic wave devices such as plate resonators, filters and sensors.
Key words：

Key words: functionally graded material, piezoelectric material, orthotropic , Love waves, dispersion relation

CLC Number:

O 346

KONG Yan-Ping-a, CHEN Chang-Hong-b, LIU Jin-Xi-a. Propagation of Love Waves in the Orthotropic Layer/Functionally Graded Piezoelectric Half-Space[J]. Journal of Shanghai Jiaotong University, 2013, 47(02): 210-215.

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