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

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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.

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Authors and Affiliations

  1. Department of Mechanics and Engineering Science, School of Engineering, Ningbo University, 818 Fenghua Road, Ningbo, Zhejiang, 315211, China

    Jianke Du, Kai Xian & Ji Wang

  2. Department of Civil and Environmental Engineering, Rutgers University, 623 Bowser Road, Piscataway, NJ, 08854, USA

    Jianke Du & Yook-Kong Yong

Authors
  1. Jianke Du
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  2. Kai Xian
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  3. Yook-Kong Yong
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  4. Ji Wang
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Correspondence to Jianke Du.

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Du, J., Xian, K., Yong, YK. et al. SH-SAW propagation in layered functionally graded piezoelectric material structures loaded with viscous liquid. Acta Mech 212, 271–281 (2010). https://doi.org/10.1007/s00707-009-0258-0

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  • DOI: https://doi.org/10.1007/s00707-009-0258-0

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