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Some Remarks on BK-Models for Fatigue Crack Growth

by M. M. Rocha, Univ of Innsbruck, Innsbruck, Austria,
G. I. Schu?ller, Univ of Innsbruck, Innsbruck, Austria,



Document Type: Proceeding Paper

Part of: Probabilistic Mechanics and Structural and Geotechnical Reliability

Abstract:

The choice of a model parameter for concentrating the entire uncertainties of a constant load amplitude fatigue crack growth process is shown to be sufficient when reproducing the first two statistical moments of the arrival times from experimental, e.g. Virkler's data. By considering this parameter to be a material property it is possible to make predictions for other load amplitude levels and geometrical configurations.

Subject Headings: Fatigue (material) | Cracking | Material properties | Parameters (statistics) | Mathematical models | Load factors | Uncertainty principles

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