THE STUDY OF DAMAGEABILITY OF PLATE STEEL UNDER CYCLIC PLASTIC BENDING
https://doi.org/10.17073/0368-0797-2016-3-173-179
Abstract
The authors have investigated the layer-by-layer development of damage of 10G2S1 plate steel during cold plastic deformation by cyclic bending. Deformation cyclic bending was performed according to the scheme of pure bending at symmetric cycle with amplitude of deformation of 5.5 %. The character of changes of the strength properties of steel shows the kinetics of damage in the process of plastic deformation. It was established that in the area of reversible damage the intensity of hardening increases, reaching a maximum value and then decreases. In the area of reversible damage the mechanical properties of steel doesn’t change until destruction. Criterion upper bound of damage is at (0,2 – 0,3)Nр , where Nр is the number of cycles to failure under cyclic tension – compression. The transformation process of the cellular dislocation structure in the passband is selected as a structural criterion of reversible damage.
About the Authors
A. B. Maksimov
Kerch State Marine Technical University
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Assist. Professor,
Kerch
V. M. Gulyaev
Kerch State Marine Technical University
Russian Federation
Russian Federation
Cand. Sci. (Military), Assist. Professor of the Chair of Informatics and Applied Mathematics,
Kerch
I. S. Erokhina
Kerch State Marine Technical University
Russian Federation
Russian Federation
Engineer, Lecturer,
Kerch
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Review
For citations:
Maksimov A.B., Gulyaev V.M., Erokhina I.S. THE STUDY OF DAMAGEABILITY OF PLATE STEEL UNDER CYCLIC PLASTIC BENDING. Izvestiya. Ferrous Metallurgy. 2016;59(3):173-179. (In Russ.) https://doi.org/10.17073/0368-0797-2016-3-173-179
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