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| Propagation of Love Waves in the Orthotropic Layer/Functionally Graded Piezoelectric Half-Space |
| KONG Yan-Ping-a, CHEN Chang-Hong-b, LIU Jin-Xi-a |
| (a. Department of Engineering Mechanics;b. School of Mechanical Engineering, Shijiazhuang Tiedao University, Shijiazhuang 050043, China) |
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Abstract This paper investigated Love waves propagating in the layered half-space structure consisting of an orthotropic layer and a functionally graded piezoelectric halfspace. The interface conditions of the layered halfspace structure are perfect and imperfect. The material properties of the piezoelectric halfspaces 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.
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Received: 13 February 2012
Published: 28 February 2013
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