FIELD: mechanical engineering. SUBSTANCE: cyclic load is applied to material specimen, it is stepwise increased up to specimen failure at a constant load level in each step, determining the level of injury in each step, and in the last step - the level of stress and fatigue value, and additionally in each step - the accumulated hysteresis energy, the fatigue value is determined according to the level of injury and accumulated hysteresis energy in each loading step proceeding from the results of tests of a single specimen. EFFECT: reduced test time and enhanced accuracy. 1 tbl
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