by Codrington, John

Plate thickness can have a profound effect on fatigue crack growth following theapplication 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. ΔK loading. The theoretical crack growthpredictions are found to be in good agreement with the experimental data.

DOI: 10.1007/s10704-009-9322-y
Online Date: 2/27/2009
Print publication date: 1/1/2009
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