Abstract
The self-consistent method is used to calculate the crack opening profile in a piezoelectric material under combined mechanical and electric loadings. The energy release rate for crack propagation is evaluated using either the un-opened crack profile (before deformation) or opened crack profile (after deformation). The results show that the applied electric field does not influence the energy release rate if the un-opened crack profile is adopted, while the electric field will play an important role when the opened crack profile is used. An analysis on an electrically conductive, elliptical cavity reveals the energy release rate for cavity propagation is a positive definite function of the combined mechanical and electrical loadings.
| Original language | English |
|---|---|
| Publication status | Published - Apr 1997 |
| Event | ADVANCES IN FRACTURE RESEARCH, VOLS 1-6, 1997, p. 1947-1958 - Duration: 1 Apr 1997 → 1 Apr 1997 |
Conference
| Conference | ADVANCES IN FRACTURE RESEARCH, VOLS 1-6, 1997, p. 1947-1958 |
|---|---|
| Period | 1/04/97 → 1/04/97 |
ISBNs
['0080428207']Keywords
- Crack opening
- Energy release rate
- Fracture
- Piezoelectric materials
- Self-consistent method
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