Analytical and experimental study of nonlinear bending response and domain wall motion in piezoelectric laminated actuators under ac electric fields

Fumio Narita, Yasuhide Shindo, Masaru Mikami

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)

Abstract

We investigate the nonlinear bending behavior of piezoelectric laminated actuators as a function of the amplitude and frequency of large electric fields both analytically and experimentally. Laminated beam theory is expanded to allow for the cantilever piezoelectric/metal/piezoelectric actuator, and the effects of alternating current (ac) electric fields on the tip deflection are analyzed. A simple phenomenological model of a vibrating domain wall in electric fields is used, and the macroscopic actuator response is predicted. A nonlinear three-dimensional finite element analysis is also employed. Experimental results are presented to validate the predictions using bimorph-type bending actuators made with thin soft lead zirconate titanate (PZT) layers and a thin metal sheet. Calculations show reasonable agreement with the experimental data, and support a role for domain wall motion in the nonlinear material response of the soft PZT under ac electric fields.

Original languageEnglish
Pages (from-to)4523-4529
Number of pages7
JournalActa Materialia
Volume53
Issue number17
DOIs
Publication statusPublished - 2005 Oct 1

Keywords

  • Bending test
  • Dynamic phenomena
  • Mesostructure
  • Piezoelectric multilayers
  • Theory and modeling

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

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