Appendix A of the ASME Boiler and Pressure Vessel Code, Section XI, contains a reference curve for fatigue crack growth rates in air in ferritic steels that was established in 1973 with a limited amount of data. In the past 15 years, many additional data have been collected that do not agree with the trend exhibited by this original reference curve. In light of these new data, an analysis has been undertaken to re-evaluate the fatigue crack growth rate curve in the Code. As a result, an improved reference curve that considers the dependence of crack growth rate on R-ratio and ΔK has been developed. This paper presents the technical basis for the improved curve, some details on the analysis used to determine it, and comparison of the current Section XI Code with the available ferritic steel database and the new reference curve. The format proposed for adoption of the new reference curve is presented, with comments on the practical effect of the proposed change.
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February 1992
Research Papers
Technical Basis for a Revised Fatigue Crack Growth Rate Reference Curve for Ferritic Steels in Air
E. D. Eason,
E. D. Eason
Modeling and Computing Services, Newark, CA 94560
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J. D. Gilman,
J. D. Gilman
Electric Power Research Institute, Palo Alto, CA 94303
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D. P. Jones,
D. P. Jones
Westinghouse Electric Corporation, West Mifflin, PA 15122
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S. P. Andrew
S. P. Andrew
Failure Analysis Associates, Palo Alto, CA 94303
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E. D. Eason
Modeling and Computing Services, Newark, CA 94560
J. D. Gilman
Electric Power Research Institute, Palo Alto, CA 94303
D. P. Jones
Westinghouse Electric Corporation, West Mifflin, PA 15122
S. P. Andrew
Failure Analysis Associates, Palo Alto, CA 94303
J. Pressure Vessel Technol. Feb 1992, 114(1): 80-86 (7 pages)
Published Online: February 1, 1992
Article history
Received:
November 21, 1988
Revised:
June 24, 1991
Online:
June 17, 2008
Citation
Eason, E. D., Gilman, J. D., Jones, D. P., and Andrew, S. P. (February 1, 1992). "Technical Basis for a Revised Fatigue Crack Growth Rate Reference Curve for Ferritic Steels in Air." ASME. J. Pressure Vessel Technol. February 1992; 114(1): 80–86. https://doi.org/10.1115/1.2929016
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