Abstract

We propose a new approach to calculating the period of crack initiation in the neighborhood of elastic inclusions in elastoplastic materials. We have established the factors determining the intensity of fatigue of a material in the neighborhood of an inclusion. These factors are: load amplitude and ratio; geometry of the inclusion surface and its relative rigidity; Young’s modulus, yield point, and ultimate strength of the matrix material; parameters of cyclic strengthening or softening of the material and its ultimate strain.

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