There are many fatigue test and statistical procedures to establish the life distribution function Q = Q(N) at constant stress (S) level. But the stress distribution function, Q = Q(S), at specified life (N) is more important to the designer, and it remains less developed. Generally, if the fatigue life distribution Q(N) and fatigue curve S(N) equations are defined, the fatigue strength distribution Q(S) is implied. However, it has been shown [4, 6, 7, 9] that any life distribution model Q(N) may be transformed into the complicated strength distribution function Q(S). In this study orthogonal relations have been developed in order to predict complications and to resolve the problem under certain conditions. With the aid of the orthogonal relations strength distributions Q(S) have been deduced using (1) lognormal, (2) two-parameter Weibull, and (3) three-parameter logweibull life models Q(N).
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October 1989
This article was originally published in
Journal of Vibration, Acoustics, Stress, and Reliability in Design
Research Papers
Fatigue Reliability Functions
V. A. Avakov,
V. A. Avakov
University of Alabama, Tuscaloosa, AL 35487-0276
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R. G. Shomperlen
R. G. Shomperlen
Bucyrus-Erie Company, South Milwaukee, WI 53172
Search for other works by this author on:
V. A. Avakov
University of Alabama, Tuscaloosa, AL 35487-0276
R. G. Shomperlen
Bucyrus-Erie Company, South Milwaukee, WI 53172
J. Vib., Acoust., Stress, and Reliab. Oct 1989, 111(4): 443-455 (13 pages)
Published Online: October 1, 1989
Article history
Received:
July 1, 1988
Online:
November 23, 2009
Citation
Avakov, V. A., and Shomperlen, R. G. (October 1, 1989). "Fatigue Reliability Functions." ASME. J. Vib., Acoust., Stress, and Reliab. October 1989; 111(4): 443–455. https://doi.org/10.1115/1.3269881
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