Abstract

In order to clarify the response of a surface notch for plastic deformation, the influenced stress fields, i.e., the elastic stress distributions at the bottom of a notch due to a pair of point forces were investigated. According to the results, the response of a semielliptical notch for the plastic deformation is almost fully determined by the notch root radius ρ alone. Therefore, the severities of structures or specimens having a notch with a definite plastic deformation almost fully determined by the notch root radius ρ and the maximum elastic stress σe<max> alone.

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