Energy-based model of similarity of low-cycle fracture of a specimen and a structural component

Using the introduced notions of specific damage and equivalence of mechanical states in low-cycle loading, we propose an energy-based variant of similarity of fracture of a model specimen and a full-scale structural component. We recommend criteria of similarity to allow for scale and surface effects, stress concentration, and their joint impact on the endurance limit. The model is substantiated experimentally. Izhevsk State Technical University, Izhevsk, Russia. Translated from Problemy Prochnosti, No. 6, pp. 23–34, November–December, 1999.