Kinked Cracks: Finding Stress Intensity Factors
In the paper we describe a general method for the solution of crack-tip stress intensity factors, for cracks which are open, subject to an arbitary far field. First, the interaction of two separated cracks is treated. The case when the extremities of the two segments are brought together to form a single kinked crack is then examined, and it is shown that reliable values for the crack-tip stress intensities may be found by only a slight variation on the standard procedure, which relies on the distribution of displacement discontinuities or dislocations. The method is very economical on computing time, and it is recommended that the technique be used afresh for each problem; for this reason only sample results are given.
KeywordsStress Intensity Stress Intensity Factor Displacement Discontinuity Circular Inclusion Kink Crack
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