Delayed fracture of cracked piezoelectric ceramics under electromechanical loading in three-point bending

Yasuhide Shindo, Fumio Narita, Mitsuru Hirama

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

Abstract

This paper presents the results of a numerical and experimental investigation in delayed fracture behavior of piezoelectric ceramics under electromechanical loading. Delayed fracture tests were conducted on the single-edge precrackedbeam specimens, and the time-to-failure and fracture load under different DC electric fields were obtained. A nonlinear finite element analysis was also employed to calculate the fracture mechanics parameters such as energy release rate, based on the permeable, impermeable, open and non-linear electrically discharging crack models. The effects of applied DC electric fields and localized polarization switching on the fracture mechanics parameters are then examined. Moreover, the results were discussed in terms of the lifetime versus energy release rate curves.

Original languageEnglish
Title of host publication12th International Conference on Fracture 2009, ICF-12
Pages2548-2557
Number of pages10
Publication statusPublished - 2009 Dec 1
Externally publishedYes
Event12th International Conference on Fracture 2009, ICF-12 - Ottawa, ON, Canada
Duration: 2009 Jul 122009 Jul 17

Publication series

Name12th International Conference on Fracture 2009, ICF-12
Volume4

Other

Other12th International Conference on Fracture 2009, ICF-12
CountryCanada
CityOttawa, ON
Period09/7/1209/7/17

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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