Electric delayed fracture and localized polarization switching of cracked piezoelectric ceramics in three-point bending

Fumio Narita, Yasuhide Shindo, Mitsuru Hirama

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

This article discusses the delayed fracture and localized polarization switching near a crack tip in three-point bending piezoceramics under electromechanical loading. We have used finite element analysis to study delayed fracture experiments with single-edge precracked-beam method. A nonlinear finite element analysis was employed to calculate the fracture mechanics parameters such as energy release rate for the permeable, impermeable, and open crack face boundary conditions. Recent proposed energetically consistent boundary conditions were also considered. The effects of applied electric field and localized polarization switching on the fracture mechanics parameters were then examined.

Original languageEnglish
Pages (from-to)285-300
Number of pages16
JournalInternational Journal of Damage Mechanics
Volume19
Issue number3
DOIs
Publication statusPublished - 2010 Apr
Externally publishedYes

Keywords

  • Delayed fracture
  • Elasticity
  • Finite element method
  • Material testing
  • Piezoelectric materials
  • Polarization switching
  • Smart materials and structures

ASJC Scopus subject areas

  • Computational Mechanics
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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