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A model for critical crack size estimation in fatigue failure of gun barrels

Author

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  • W. J. Padgett
  • S. D. Durham

Abstract

With repeated firing, fatigue cracks are produced in a gun barrel, and the barrel is no longer useful when a crack reaches a critical size. The initial crack size and the critical crack size, as well as the number of firings producing the critical crack size, may be considered as random variables. Assuming a proportional damage model for crack growth, a method for estimating the critical crack size distribution is presented. From these results, an estimate of the barrel life, or the residual barrel life once a crack of a given size is measured, can be obtained.

Suggested Citation

  • W. J. Padgett & S. D. Durham, 1989. "A model for critical crack size estimation in fatigue failure of gun barrels," Naval Research Logistics (NRL), John Wiley & Sons, vol. 36(2), pages 139-145, April.
    • Handle: RePEc:wly:navres:v:36:y:1989:i:2:p:139-145
    DOI: 10.1002/1520-6750(198904)36:23.0.CO;2-Y
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    References listed on IDEAS

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    1. W. J. Padgett & Chris P. Tsokos, 1979. "Bayes Estimation of Reliability Using an Estimated Prior Distribution," Operations Research, INFORMS, vol. 27(6), pages 1142-1157, December.
    2. F. Proschan & J. Sethuraman, 1978. "A probability model for initial crack size and fatigue life of gun barrels," Naval Research Logistics Quarterly, John Wiley & Sons, vol. 25(2), pages 273-277, June.
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    Cited by:

    1. Nader Ebrahimi, 2005. "System reliability based on diffusion models for fatigue crack growth," Naval Research Logistics (NRL), John Wiley & Sons, vol. 52(1), pages 46-57, February.

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