Fatigue crack propagation in three-point bending of piezoceramics under electromechanical loading

Yasuhide Shindo, Fumio Narita, Mitsuru Hirama

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this study, we present a combined numerical and experimental examination of the fatigue crack propagation in piezoelectric ceramics under electromechanical loading. A crack was created normal to the poling direction. Dynamic and static fatigue tests were conducted in three-point bending under electric fields using single-edge precracked-beam method. A nonlinear finite element analysis was also performed to evaluate the energy release rate for the permeable, impermeable and open crack models, and the effects of electric field and polarization switching on the energy release rate were discussed. The results were then examined in terms of the crack propagation velocity and lifetime vs energy release rate curves.

Original languageEnglish
Title of host publication23rd Collection of Scientific Research Papers
Subtitle of host publicationMicro- and Nano-Material Systems III
EditorsYehia M. Haddad
PublisherAdvanced Engineering Solutions
Pages11-21
Number of pages11
ISBN (Print)9781927838167
Publication statusPublished - 2015 Jan 1
Event23rd Collection of Scientific Research Papers on Micro- and Nano-Material Systems, 2015 - Ottawa, Canada
Duration: 2015 Aug 222015 Aug 22

Publication series

NameAES-ATEMA International Conference Series - Advances and Trends in Engineering Materials and their Applications
Volumenone
ISSN (Print)1924-3642

Other

Other23rd Collection of Scientific Research Papers on Micro- and Nano-Material Systems, 2015
CountryCanada
CityOttawa
Period15/8/2215/8/22

Keywords

  • Fatigue
  • Finite element method
  • Fracture
  • Material testing
  • PZT ceramics
  • Piezomechanics
  • Smart materials and structures

ASJC Scopus subject areas

  • Mechanics of Materials
  • Materials Science(all)

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