Effects of Face Plates on Surface Displacement Profile in 2-2 Piezoelectric Composites

Wenwu Cao, Q. M. Zhang, J. Z. Zhao, L. E. Cross

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

A simple model is developed to describe the inhomogeneous surface deformation profile of face plated 2–2 type piezocomposites. The contribution of face plate to the equilibrium condition is approximated as from simple elastic bending of the plate. Analytical solutions were obtained for the inhomogenous surface displacement profile. From these solutions one can predict the variation of the nonuniform surface displacement in a 2–2 composite with respect to material and geometry parameters. It is shown that the surface displacement uniformity depends on several factors: The ceramic aspect ratio, the spacing between ceramic plates, the thickness of face plate, the Young's modulus of the polymer and of the face plate. The calculated results indicate that stiffer face plates, softer polymer resin, and closer ceramic spacing could make the piezocomposite transducers to have more uniform surface displacement.

Original languageEnglish (US)
Pages (from-to)37-41
Number of pages5
JournalIEEE transactions on ultrasonics, ferroelectrics, and frequency control
Volume42
Issue number1
DOIs
StatePublished - Jan 1995

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Acoustics and Ultrasonics
  • Electrical and Electronic Engineering

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