Evaluation of flawed piping under dynamic loading
- Applied Science and Technology, Inc., Poway, CA (United States)
- Electric Power Research Inst., Palo Alto, CA (United States)
This report describes analytical and interpretative research on results of large-scale dynamic tests of flawed pipe which were conducted for the International Piping Integrity Research Group (IPIRG). Here, the adequacy of dynamic analysis methods is examined, as well as margins against failure associated with flaw evaluation criteria. Experimental and analytical results are related to requirements of the American Society of Mechanical Engineers Boiler and Pressure Vessel Codes. Code limits of operability bound all test results. Guidance is offered on selection of ``Z-factors`` for austenitic materials to retain code safety margins. In the IPIRG tests, efforts to produce a nearly instantaneous full severance pipe break were unsuccessful, indicating that this hypothetical basis for plant accident evaluations is conservative.
- Research Organization:
- Electric Power Research Inst., Palo Alto, CA (United States); Applied Science and Technology, Inc., Poway, CA (United States); Cloud (Robert L.) and Associates, Inc., Berkeley, CA (United States)
- Sponsoring Organization:
- Electric Power Research Inst., Palo Alto, CA (United States)
- OSTI ID:
- 10190355
- Report Number(s):
- EPRI-TR-100424; ON: UN93002535
- Resource Relation:
- Other Information: PBD: Oct 1992
- Country of Publication:
- United States
- Language:
- English
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