Micromechanisms of cleavage fracture
Conference
·
OSTI ID:293131
- Rosenfield and Rosenfield, Columbus, OH (United States)
Starting with recent work of Irwin and Zhang, evidence is reviewed showing that cleavage fracture in steel is essentially a series of burst/pause events. The bursts are propagation of cleavage cracks formed ahead of the main crack, while the pauses are ductile rupture of unbroken ligaments behind the crack tip. While there are differences in detail, the processes of initial crack extension and rapid crack propagation have significant similarities. In particular, the concept of local dynamic elastic loading on the micro-scale may be useful for the analysis of both phenomena.
- OSTI ID:
- 293131
- Report Number(s):
- CONF-970980--; ISBN 0-87339-381-3
- Country of Publication:
- United States
- Language:
- English
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