Abstract
The present paper studies thermodynamic functions and energy release rate for an elliptical cylinder cavity or an opened crack inside an infinite piezoelectric medium under combined mechanical-electrical loadings. The energy release rate for the cavity propagation is formulated under the condition that the ratio of the minor semi-axis to the major semi-axis of the ellipse remains unchanged. For an insulating crack, the applied electric field contributes nothing to the energy release rate when the undeformed crack profile is used, while the electric field resists crack propagation when the deformed crack profile is used. For a conducting slit crack, the energy release rate is independent of the applied electric field perpendicular to the crack, and is enhanced by the applied electric field parallel to the crack.
| Original language | English |
|---|---|
| Pages (from-to) | 1021-1030 |
| Number of pages | 10 |
| Journal | Key Engineering Materials |
| Issue number | 149 PART II |
| DOIs | |
| Publication status | Published - 1998 |
Keywords
- Elliptical Cavity
- Energy Release Rate
- Fracture
- Piezoelectric Materials
Fingerprint
Dive into the research topics of 'Energy release rate for a crack or a cavity in a piezoelectric material'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver