Fracture and fatigue behavior of cracked piezoelectric ceramics under electric fields

Yasuhide Shindo, Fumio Narita

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

Abstract

In this study, we report theoretical and experimental examination of the fracture and fatigue behavior in cracked piezoelectric PZT ceramics under electric fields. Delayed fracture and dynamic fatigue tests were carried out in three-point bending with the single-edge precracked-beam specimens. The crack was created normal to the poling direction. Time-to-failure and fracture load under DC/ AC electric fields were obtained from the experiment. Finite element computation was also carried out, and the energy release rate of cracked PZT specimens under DC/AC electric fields was calculated. The results were then discussed in terms of the energy release rate versus lifetime curve. In addition, the effect of electric fields on the critical energy release rate was examined.

Original languageEnglish
Title of host publicationAdvances and Trends in Engineering Materials and Their Applications - Proceedings of Can 2012 11th AES-ATEMA International Conference
Pages47-54
Number of pages8
Publication statusPublished - 2012 Dec 27
EventCAN 2012 11th International Conference on Advances and Trends in Engineering Materials and Their Applications, AES-ATEMA 2012 - Toronto, ON, Canada
Duration: 2012 Aug 62012 Aug 10

Publication series

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

Other

OtherCAN 2012 11th International Conference on Advances and Trends in Engineering Materials and Their Applications, AES-ATEMA 2012
CountryCanada
CityToronto, ON
Period12/8/612/8/10

Keywords

  • Finite element method
  • Material testing
  • PZT
  • Piezomechanics

ASJC Scopus subject areas

  • Mechanics of Materials
  • Materials Science(all)

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  • Cite this

    Shindo, Y., & Narita, F. (2012). Fracture and fatigue behavior of cracked piezoelectric ceramics under electric fields. In Advances and Trends in Engineering Materials and Their Applications - Proceedings of Can 2012 11th AES-ATEMA International Conference (pp. 47-54). (AES-ATEMA International Conference Series - Advances and Trends in Engineering Materials and their Applications).