Investigation on low-cycle fatigue strength of piping components
From 2nd international congress for pressure vessel and piping technology; San Antonio, Texas, USA (1 Oct 1973). See CONF731003-P2. An investigation was carried out on the fatigue strength of branch pipe connections and curved pipes for nuclear power pipings. Steel model specimens of piping components were subjected to cyclic internal pressure, in-plane and out-of-plane bending moments, and expansion force loadings. Total strain ranges of piping component specimens were measured with wire strain gages at locations where fatigue failures were apt to occur. The fatigue strength of piping components was evaluated by relating the fatigue life and the range of the local strain to the fatigue strength of small smooth specimens of the pipe material. On the basis of the test results, suggestions are made for improving the design of piping components which are subjected to cyclic loadings. (auth)
- Research Organization:
- Tokyo Univ.
- NSA Number:
- NSA-29-000332
- OSTI ID:
- 4423737
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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