Seismic fragility test of a 6-inch diameter pipe system
This report contains the test results and assessments of seismic fragility tests performed on a 6-inch diameter piping system. The test was funded by the US Nuclear Regulatory Commission (NRC) and conducted by ETEC. The objective of the test was to investigate the ability of a representative nuclear piping system to withstand high level dynamic seismic and other loadings. Levels of loadings achieved during seismic testing were 20 to 30 times larger than normal elastic design evaluations to ASME Level D limits would permit. Based on failure data obtained during seismic and other dynamic testing, it was concluded that nuclear piping systems are inherently able to withstand much larger dynamic seismic loadings than permitted by current design practice criteria or predicted by the probabilistic risk assessment (PRA) methods and several proposed nonlinear methods of failure analysis.
- Research Organization:
- Rockwell International Corp., Canoga Park, CA (USA). Energy Technology Engineering Center; Nuclear Regulatory Commission, Washington, DC (USA). Div. of Engineering Safety
- OSTI ID:
- 6189520
- Report Number(s):
- NUREG/CR-4859; ON: TI87900555
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
42 ENGINEERING
NUCLEAR POWER PLANTS
PIPES
RESPONSE FUNCTIONS
SEISMIC EFFECTS
CRACK PROPAGATION
DAMPING
DYNAMIC LOADS
EXPERIMENTAL DATA
FAILURES
METALLOGRAPHY
SCANNING ELECTRON MICROSCOPY
TESTING
VALVES
WELDED JOINTS
CONTROL EQUIPMENT
DATA
ELECTRON MICROSCOPY
EQUIPMENT
FLOW REGULATORS
FUNCTIONS
INFORMATION
JOINTS
MICROSCOPY
NUCLEAR FACILITIES
NUMERICAL DATA
POWER PLANTS
THERMAL POWER PLANTS
220900* - Nuclear Reactor Technology- Reactor Safety
220200 - Nuclear Reactor Technology- Components & Accessories
420200 - Engineering- Facilities
Equipment
& Techniques