FIELD: metallurgy.
SUBSTANCE: invention relates to determination of strength properties of metals and alloys thereof by applying tensile loads to samples, and can be applied in metallurgy and machine building. Subject: temperature and deformation processing of metal is performed and tensile test to destruction is conducted. Narrowing of sample neck is determined, limit deformations are calculated, tensile test is reproduced by numerical simulation in program medium, results of numerical simulation are compared with results of "real" tensile test, and destruction criterion limit value is determined when maximum deformation is achieved.
EFFECT: technical result is higher reliability of determining limit values of normalized destruction criterion Cockcroft-Latham for any processes of metal forming by pressure.
1 cl, 2 dwg
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