Abstract
In one of our recent publications, a formula for the computation of the strain energy release rate from 3-D singularity finite elements was derived based on the Irwin's Crack Closure Integral (ICCI) method. In this paper, the stress intensity factors of embedded elliptical and semi-elliptical surface cracks in a finite thickness plate subjected to tension are calculated using this formula. Comparisons between the numerical results obtained using the formula and those from the literature showed that the proposed technique yields accurate stress intensity factors.
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