In this paper, the stress intensity factor KI for the crack front line a − ε(1 + cosmθ), which is slightly perturbed from a complete circular line with a radius of a, is determined. The method used in this study is based upon the perturbation technique developed by Rice for solving the elastic field of a crack whose front slightly deviates from some reference geometry. It is finally shown that the solution for the stress intensity factor matches the results of a three-dimensional finite element analysis.
Stress Intensity Factor of an Elliptical Crack With a Wavy Crack Front
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Arai, M. "Stress Intensity Factor of an Elliptical Crack With a Wavy Crack Front." Proceedings of the ASME 2016 Pressure Vessels and Piping Conference. Volume 1A: Codes and Standards. Vancouver, British Columbia, Canada. July 17–21, 2016. V01AT01A011. ASME. https://doi.org/10.1115/PVP2016-63362
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