Abstract
A procedure is proposed for the construction [with high accuracy (∼ 0.02%)] of the stress–strain diagrams for specimens corresponding to a model of restrained circular plate. On the basis of these diagrams for 40Kh steel, it is shown that the phenomenon of hysteresis, the nonlinearity of the dependence of the amplitude of hysteresis on the mechanical stresses σ, and the initial residual strains appear for low σ (10–20 times lower than the yield strength). These results can serve as a basis for the subsequent development of the procedure of prediction of the strength of structural materials for low strains, much lower than the maximum strains corresponding to the ordinary Hooke’s region.
Published Version
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