Abstract
This paper deals with the fatigue behavior of cracked piezoelectric ceramics in cyclic bending under electric fields both numerically and experimentally. 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. Number of cycles to failure was measured under different electric fields. A plane strain finite element analysis was also performed, and the effect of polarization switching on the energy release rate was discussed under a high negative electric field. In addition, possible mechanisms for crack growth were discussed by scanning electron microscope examination of the fracture surface of the piezoelectric ceramics.
| Original language | English |
|---|---|
| Pages (from-to) | 8-14 |
| Number of pages | 7 |
| Journal | Journal of Electroceramics |
| Volume | 31 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - 2013 Oct |
| Externally published | Yes |
Keywords
- Cyclic fatigue
- Finite element method
- Material testing
- PZT ceramics
- Piezomechanics
- Smart materials and structures
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Condensed Matter Physics
- Mechanics of Materials
- Electrical and Electronic Engineering
- Materials Chemistry