Published August 1995 | Version v1
Report Open

Fatigue strain-life behavior of carbon and low-alloy steels, austenitic stainless steels, and Alloy 600 in LWR environments

Description

The existing fatigue strain vs. life (S-N) data, foreign and domestic, for carbon and low-alloy steels, austenitic stainless steels, and Alloy 600 used in the construction of nuclear power plant components have been compiled and categorized according to material, loading, and environmental conditions. Statistical models have been developed for estimating the effects of the various service conditions on the fatigue life of these materials. The results of a rigorous statistical analysis have been used to estimate the probability of initiating a fatigue crack. Data in the literature were reviewed to evaluate the effects of size, geometry, and surface finish of a component on its fatigue life. The fatigue S-N curves for components have been determined by adjusting the probability distribution curves for smooth test specimens for the effect of mean stress and applying design margins to account for the uncertainties due to component size/geometry and surface finish. The significance of the effect of environment on the current Code design curve and on the proposed interim design curves published in NUREG/CR-5999 is discussed. Estimations of the probability of fatigue cracking in sample components from BWRs and PWRs are presented

Availability note (English)

MF available from INIS under the Report Number; Also available from OSTI as TI95016720; NTIS; GPO.

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Additional details

Publishing Information

Imprint Pagination
67 p.
Report number
NUREG/CR--6335

Optional Information

Contract/Grant/Project number
Contract W-31109-ENG-38
Funding organization
Nuclear Regulatory Commission, Washington, DC (United States).
Secondary number(s)
ANL--95/15/.