SH-SAW propagation in layered functionally graded piezoelectric material structures loaded with viscous liquid

Jianke Du, Kai Xian, Yook Kong Yong, Ji Wang

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

We investigate the properties of shear horizontal surface acoustic wave propagation in layered functionally graded piezoelectric material structures loaded with viscous liquid. The piezoelectric material is polarized in the z-direction and the material properties change gradually along the thickness of the layer. Interfacial mechanical conditions are continuity of particle velocity and stress components at the interface. We here assume that the liquid is electrically insulated and its permittivity is much less than that of the piezoelectric material. The solutions of dispersion relations are obtained for insulated liquid with electrically open or shorted conditions by means of transfer matrix method. The effects of the gradient variation of material constants on the phase velocity and attenuation are presented and discussed in detail. The analytical method and the results are useful for the design of the resonators and sensors.

Original languageEnglish (US)
Pages (from-to)271-281
Number of pages11
JournalActa Mechanica
Volume212
Issue number3-4
DOIs
StatePublished - Jul 2010

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Mechanical Engineering

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