A Generalized Method for Estimating Multiaxial Elastic-Plastic Notch Stresses and Strains, Part 1: Theory

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Abstract
The well known approximation formulas valid for uniaxial notch stresses are extended to multiaxial stress states in order to establish a load - equivalent notch stress and strain relationship. The correlation between equivalent and principal notch stresses and strains is obtained by applying theory of plasticity in combination with an assumption concerning one stress or strain component. The approximation method is summarized in a solution scheme. Finally aspects of accuracy are discussed.

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