FIELD: materials science and fracture mechanics.
SUBSTANCE: axial tension of flat or round samples is carried out until failure. The mechanical properties of the material are determined by experiment: tensile strength, yield strength, relative elongation at a fixed strain rate and test temperature. Based on these data, the specific work of crack formation is determined using the formula.
EFFECT: when studying metal structures operating under loads and strain rates up to destruction, the ability to base a forecast on the operational reliability of the selected material on the basis of a quantitative assessment of the energy parameter – the specific work of crack formation.
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