HFIR Vessel Probabilistic Fracture Analysis, Considering Success of Hydrostatic Proof Tests [electronic resource].
- Published:
- Washington, D.C. : United States. Office of the Assistant Secretary for Nuclear Energy, 1999.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description:
- 17 pages : digital, PDF file
- Additional Creators:
- Oak Ridge National Laboratory, United States. Office of the Assistant Secretary for Nuclear Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Summary:
- Periodic hydrostatic proof testing and probabilistic fracture mechanics analyses are performed to demonstrate the structural integrity and useful life of the High Flux Isotope Reactor (HFIR) pressure vessel. Calculations of the hydro-test conditions (pressure, temperature, and frequency) and of the probability of failure account for vessel degradation (flaw growth and radiation-induced embrittlement) that takes place between tests and of the credible worst-case-operating condition. The specified useful life of the vessel is limited by specified maximum permissible calculated probabilities of failure for hydro-test and worst-case-operating conditions. The probability of failure can be calculated with or without accounting for the success (absence of failure) of a test, but if success is accounted for, the calculated probabilities are less and thus the maximum permissible life greater. This report describes a simple method for including the success of a test.
- Report Numbers:
- E 1.99:ornl/tm-13376
ornl/tm-13376 - Subject(s):
- Other Subject(s):
- Note:
- Published through SciTech Connect.
01/01/1999.
"ornl/tm-13376"
Cheverton, R.D. - Type of Report and Period Covered Note:
- Topical;
- Funding Information:
- AC05-96OR22464
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