Abstract
This article discusses the delayed fracture and localized polarization switching near a crack tip in three-point bending piezoceramics under electromechanical loading. We have used finite element analysis to study delayed fracture experiments with single-edge precracked-beam method. A nonlinear finite element analysis was employed to calculate the fracture mechanics parameters such as energy release rate for the permeable, impermeable, and open crack face boundary conditions. Recent proposed energetically consistent boundary conditions were also considered. The effects of applied electric field and localized polarization switching on the fracture mechanics parameters were then examined.
| Original language | English |
|---|---|
| Pages (from-to) | 285-300 |
| Number of pages | 16 |
| Journal | International Journal of Damage Mechanics |
| Volume | 19 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 2010 Apr |
Keywords
- Delayed fracture
- Elasticity
- Finite element method
- Material testing
- Piezoelectric materials
- Polarization switching
- Smart materials and structures
ASJC Scopus subject areas
- Computational Mechanics
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering