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Type: Journal article
Title: On the Effect of Plate Thickness on Post-Overload Fatigue Crack Growth
Author: Codrington, J.
Citation: International Journal of Fracture, 2009; 155(1):93-99
Publisher: Kluwer Academic Publ
Issue Date: 2009
ISSN: 0376-9429
Statement of
John Codrington
Abstract: Plate thickness can have a profound effect on fatigue crack growth following the application of an overload cycle. A modified strip-yield model is presented for determining the effects of plate thickness based on the mechanism of plasticity-induced crack closure and first-order plate theory. This approach eliminates the need for any empirical or fitting parameters. Comparisons are made with experimental data for the case of a single tensile overload applied under otherwise constant ∆Κ loading. The theoretical crack growth predictions are found to be in good agreement with the experimental data.
Keywords: fatigue crack growth; overload retardation; plasticity-induced crack closure; plate thickness.
RMID: 0020090316
DOI: 10.1007/s10704-009-9322-y
Appears in Collections:Mechanical Engineering publications
Materials Research Group publications

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