Coupled electromechanical behavior of an interface electrode in a piezoelectric layer

Bao Lin Wang, Yiu Wing Mai

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

An interface electrode in a layered piezoelectric medium of finite thickness is investigated. Closed-form expressions for the electromechanical fields at the electrode tip are obtained in terms of the applied electric field intensity factor. Effect of layer thickness on the electrode tip fields is studied. The values of the electric field intensity factor are obtained exactly for infinite layer thickness and numerically for finite layer thickness. The stress, electric displacement, and electric field are graphically shown. It is found that the electromechanical intensity factors at the electrode tip can be reduced considerably by decreasing the thickness of the piezoelectric layer. From the solution of the single electrode problem, the solution for two identical and collinear interface electrodes in the piezoelectric medium are also obtained.

Original languageEnglish
Title of host publicationBehavior and Mechanics of Multifunctional and Composite Materials 2008
DOIs
Publication statusPublished - 2008
Externally publishedYes
EventBehavior and Mechanics of Multifunctional and Composite Materials 2008 - San Diego, CA, United States
Duration: 10 Mar 200813 Mar 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6929
ISSN (Print)0277-786X

Conference

ConferenceBehavior and Mechanics of Multifunctional and Composite Materials 2008
Country/TerritoryUnited States
CitySan Diego, CA
Period10/03/0813/03/08

Keywords

  • Electrode
  • Electromechanical behavior
  • Fracture mechanics
  • Piezoelectric materials

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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