Reliability analysis of stiff versus flexible piping. Final project report

Technical Report · Wed May 01 04:00:00 EDT 1985

OSTI ID:5716377

Lu, S C; Chou, C K

This research project is to develop a technical basis for flexible piping designs which will improve piping reliability and minimize the use of pipe supports, snubbers, and pipe whip restraints. This study indicated that piping design can be made more reliable by some reduction of rigid supports and/or snubbers. This study also confirmed that the malfunction of pipe whip restraints introduced higher thermal stresses and tended to reduce the overall piping reliability. Finally, our results indicated that supports in a flexible piping design may need to be reevaluated and that the elimination of pipe supports which are close to components should be done with care in order to minimize the impact on the component reliability.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5716377
• Report Number(s): NUREG/CR-4263; UCRL-20410; ON: TI85012990
• Country of Publication: United States
• Language: English

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MECHANICAL STRUCTURES
NUCLEAR FACILITIES
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POWER PLANTS
RELIABILITY
SUPPORTS
THERMAL POWER PLANTS