Assessment of steel deformability in terms of energy dissipation

Gliner, R. E.; Дубинский, В. Н.; Katyukhin, E. B.; Pryanichnikov, V. A.

doi:10.3103/s0967091217090042

Cited by 2 publications

(1 citation statement)

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“…In the thermodynamic representation the macroscopic result of metal deformation (it's a change in shape and size) is a dissipative process, that is the transition of a part of the kinetic energy to the internal energy of the deformable metal, which is realized in the formation of a certain internal structure [10][11][12]. In so doing, the amount of energy absorbed during deformation is determined by the work of deformation, and absorption rate defines the resistance of the metal to deformation [13]. In the case of tension test, the deformation work is numerically equal to the surface area under stress-strain curve, and is the sum of the work of elastic and plastic deformation.…”

Section: Experimental Partmentioning

confidence: 99%

Estimates of Metal Deformability

Zharmukhambetova

Баранникова

2019

MATEC Web Conf.

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This paper is devoted to the study of the laws of the deformation behavior of metals, determined by carrying out standardized uniaxial tensile tests. The distribution of various strength grade metals by strain resistance was analyzed. It was taken into account that in the thermodynamic aspect the deformation process is a dissipative effect. In that regard, the magnitude of deformation work, determined by the area of the tension diagram, serves as a basis for assessing the deformability criteria of metals. It was found, that the normalized specific work of deformation linearly increases with strength. As well as it was established that localization of plastic flow is related directly to the characteristics of the tension diagram under solid deformation. In the applied aspect, the numerical values of the compliance criterion can be used to predict the materials behavior of different strength grade during mechanical processing (metal forming and cutting) or operation.

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Section: Experimental Partmentioning

confidence: 99%