Classification of thermal stresses and calculation of the C/sub 3/ stress index in component fatigue analysis
Conference
·
· Am. Soc. Mech. Eng., (Pap.); (United States)
OSTI ID:6150116
The ASME Boiler and Pressure Vessel Code Section III requires the evaluation of secondary stresses due to thermal transient loadings. At gross structural or material discontinuities it is especially critical to determine this stress correctly since it is tied directly to the penalty factor, Ke, on the alternating stress. This paper will provide a method by which the secondary thermal stress can be extracted from the total thermal stress in NB-3200 piping component analysis. Two examples are provided which illustrate the method and the potential benefits. In addition there is a discussion of how the C3 stress index of NB-3600 can be justifiably reduced using these same methods.
- Research Organization:
- Nuclear Technology Division, Westinghouse Electric Corporation, Pittsburgh, Pennsylvania
- OSTI ID:
- 6150116
- Report Number(s):
- CONF-840647-
- Conference Information:
- Journal Name: Am. Soc. Mech. Eng., (Pap.); (United States) Journal Volume: 84-PVP-118
- Country of Publication:
- United States
- Language:
- English
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