Fatigue Crack Propagation under Random Loading

  • F. L. Nilsson
Conference paper
Part of the International Union of Theoretical and Applied Mechanics book series (IUTAM)

Abstract

Fatigue damage caused by random loading has since long been a subject of interest both to researchers and engineers. Most work in this field deals with the problem of fatigue crack initiation while theories for crack propagation under random loading have not reached the same level of development. During the recent years, however, several authors have addressed this problem and now different approaches exist. In most cases a deterministic relation between the stress-intensity factor and the crack growth rate is assumed and the random nature of the problem enters by permitting some quantities to be stochastic variables. This type of approach is used e.g. by Miller [1] and Nilsson [2]. A different method has been proposed by Kozin and Bogdanoff [3] who employed a Markoff chain model.

Keywords

Fatigue 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Miller A.G.: Crack propagation due to random thermal fluctuations: effects of temporal incoherence, Int. J. Pressure Vessels and Piping, 8, (1980) 15–24.CrossRefGoogle Scholar
  2. 2.
    Nilsson F.: A model for fracture mechanical estimation of the failure probability of reactor pressure vessels, Proc. 3rd International Conference Pressure Vessel Technology Tokyo, Part II, (1977), 593–601.Google Scholar
  3. 3.
    Kozin F.; Bogdanoff J.L.: A critical analysis of some probabilistic models of fatigue crack growth, Eng. Fract. Mech, 14, (1981), 59–89.CrossRefGoogle Scholar
  4. 4.
    Nilsson F.: Fatigue crack growth under stochastic loading, ITM-Symposium on Stochastic Mechanics, Lund, (1983).Google Scholar
  5. 5.
    Ibragimov; Linnik: Independent and stationary sequences of random variables, Wolters-Noordhoff, (1971).Google Scholar
  6. 6.
    Rice S.O.: Mathematical analysis of random noise, Bell. Syst. J, 23, (1944), 282–332.MATHMathSciNetGoogle Scholar

Copyright information

© Springer-Verlag, Berlin, Heidelberg 1985

Authors and Affiliations

  • F. L. Nilsson
    • 1
  1. 1.Swedish Nuclear Power InspectorateStockholmSweden

Personalised recommendations