Directional stability of crack propagation
Technical Report
·
OSTI ID:6487179
Since fracture toughness testing is time consuming and expensive, it is desirable to obtain as many data points as possible from each specimen. This allows the variability of toughness values to be studied and also permits the effects of such variables as welds or heat treatment to be evaluated with a single specimen. To obtain many data points by arresting and subsequently repropagating a crack requires that the crack growth must stop shortly after initiation (propagational stability) and that the crack must continue to propagate in its own plane (directional stability). Because the aspects of propagational stability have been investigated adequately, the topic of directional stability is considered both theoretically and experimentally.
- Research Organization:
- California Univ., Livermore (USA). Lawrence Livermore Lab.
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6487179
- Report Number(s):
- UCRL-52593
- Country of Publication:
- United States
- Language:
- English
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