Acoustic emission monitoring of ZB-1 intermediate scale vessel test
Primary results derived to date from the 70/sup 0/C portion of the testing include: (1) demonstration of the ability of AE to signal an impending failure condition, (2) AE from fatigue crack growth can be consistently detected using sensing methods directly applicable to reactor monitoring, (3) special features of the AE data such as signal amplitude produced by crack growth and the location of the AE data relative to the load cycle are becoming evident, (4) the reliability of AE in detecting cracks during inservice hydrostatic testing is being defined, (5) use of AE data to estimate flaw severity appears to be feasible, and (6) the pattern recognition method for identifying AE signals from crack growth must be improved but evidence indicates that it can be made to perform acceptably.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (USA)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 5376605
- Report Number(s):
- PNL-SA-11636; CONF-8310224-1; ON: DE84004849
- Country of Publication:
- United States
- Language:
- English
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