Modeling and identification of nonlinear piezoelectric material properties for energy harvesting

Vamsi C. Meesala, Muhammad R. Hajj

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

1 Scopus citations

Abstract

Due to the complementary direct and inverse piezoelectric effects, piezoelectric materials have been proposed for various critical applications. More recently, there has been increased attention toward extending their realm to produce higher power or to detect large strains, which can potentially force them to exhibit several nonlinear phenomena. Modeling these nonlinear phenomena is still in its infancy, and universally agreed nonlinear constitutive relations are still under development. The vital step in understanding the experimental response and in proposing corresponding nonlinear constitutive relations involves identification of the nonlinear material parameters. In this chapter, we consider a unimorph subjected to (a) direct and (b) parameter excitations, and discuss several aspects of mathematical modeling of the nonlinear piezoelectric behavior and propose parameter identification schemes using the approximate solution of the governing equations obtained from the method of multiple scales.

Original languageEnglish
Title of host publicationFerroelectric Materials for Energy Harvesting and Storage
Pages147-185
Number of pages39
ISBN (Electronic)9780081028025
DOIs
StatePublished - 1 Jan 2020

Keywords

  • Energy harvesters
  • Nonlinear phenomena
  • Piezoelectric effects
  • Piezoelectricity
  • Saturation
  • Super-harmonics

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