Variation of stretch zone width with J, loading rate, temperature and pre-crack depth
Abstract
The effects of J, temperature, loading rate, and pre-crack depth on stretch zone width have been examined. This revealed that changes in stretch zone width with pre-critical J and temperature are larger than measurement uncertainties and thus can be determined with confidence. Changes in stretch zone width with loading rate are smaller; large changes in velocity are required if changes in stretch zone width are to be measured. No change in stretch zone width with pre-crack depth could be detected. In all cases, secondary shear cracks complicated the assessments.
- Publication:
-
International Journal of Fracture
- Pub Date:
- March 1994
- Bibcode:
- 1994IJFr...66...19H
- Keywords:
-
- Cracks;
- Fracture Mechanics;
- Fracture Strength;
- J Integral;
- Loading Rate;
- Temperature Effects;
- Crack Geometry;
- Depth;
- Fatigue (Materials);
- Fracturing;
- Structural Mechanics