TY - GEN
T1 - Fracture and fatigue behavior of cracked piezoelectric ceramics under electric fields
AU - Shindo, Yasuhide
AU - Narita, Fumio
PY - 2012
Y1 - 2012
N2 - 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.
AB - 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.
KW - Finite element method
KW - Material testing
KW - Piezomechanics
KW - PZT
UR - http://www.scopus.com/inward/record.url?scp=84871437126&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84871437126&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84871437126
SN - 9780987994523
T3 - AES-ATEMA International Conference Series - Advances and Trends in Engineering Materials and their Applications
SP - 47
EP - 54
BT - Advances and Trends in Engineering Materials and Their Applications - Proceedings of Can 2012 11th AES-ATEMA International Conference
T2 - CAN 2012 11th International Conference on Advances and Trends in Engineering Materials and Their Applications, AES-ATEMA 2012
Y2 - 6 August 2012 through 10 August 2012
ER -