Abstract
It is widely recognized that the fatigue crack propagation is fundamentally a random process which can be predicted only in terms of probability. The primary source of statistical variation of fatigue crack propagation is material inhomogeneity. To explain its effects, the authors proposed in the previous paper a new stochastic model which treats the material’s resistance against fatigue crack growth as a spatial stochastic process along the path of the crack. This paper investigates the influence of the parameter variation on the results using Monte-Carlo simulations for the proposed model in the case of the constant load amplitude. It is shown that the statistical properties of random crack propagation resistance has great influence on the distribution of the crack propagation fatigue life. The results are also compared with well-known experimental data sets and satisfactory agreements are obtained.
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© 1991 Computational Mechanics Publications
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Sasaki, T., Sakai, S., Okamura, H. (1991). Statistical Evaluation of the Distribution of Crack Propagation Fatigue Life by Simulating the Crack Growth Process. In: Spanos, P.D., Brebbia, C.A. (eds) Computational Stochastic Mechanics. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-3692-1_40
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DOI: https://doi.org/10.1007/978-94-011-3692-1_40
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-85166-698-0
Online ISBN: 978-94-011-3692-1
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