Generalization of notch analysis and its extension to cyclic loading

Abstract A method is presented whereby the maximum stress/strain at notch roots can be determined for monotonie as well as cyclic loading. It is based on an averaged similarity measure of the stress and stain product within the elastic-plastic domain around the notch of two solutions, namely the theoretical elastic and actual elastoplastic, when the small scale yielding condition exists. The predicted values at the notch root are in good agreement with the experimental data. The method developed here is rather general, and can be used for the multiaxial states of stress. Two methods previously proposed to predict the stress and strain at the notch root are shown to be particular cases of the one developed herein.

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