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The fatigue crack growth law is randomized by employing the pulse train stochastic process model. The resulting equation is stochastically averaged so that the crack size can be approximately modelled as a Markov process. Two fundamental issues of the problem are addressed: the determination of the crack size after a number of loading cycles has elapsed, and the determination of the time required by the crack to reach a specified length; this time is treated as the random variable time-to-failure and the analysis is cast into a first-passage time problem.

Additional information

Authors: SOLOMAS G, JRC Ispra (IT)
Bibliographic Reference: Article: Industrial Application of Structural Reliability Theory (1997), pp. 225-241
Record Number: 199810504 / Last updated on: 1998-05-05
Original language: en
Available languages: en
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