Perturbation solutions for non-linear crack problems
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Approximate solutions ofJ integrals under plane loadings (modes I and II combined) and antiplane shear loadings (mode III) are obtained for bodies with central through cracks of power hardening materials, by using a perturbation method. The obtained calculating formula is very simple and a comparison with available results shows that the formula enjoys quite good accuracy and is suitable for engineering uses.
Key Wordsperturbation method non-linear crack
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