 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
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| In English (Mech. Solids): | | 4810 |
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| A.S. Begun, A.A. Burenin, L.V. Kovtanyuk, and A.N. Prokudin, "On the Sequential Change in the Mechanisms of Production of Large Irreversible Deformations," Mech. Solids. 56 (7), 1352-1362 (2021) |
| Year |
2021 |
Volume |
56 |
Number |
7 |
Pages |
1352-1362 |
| DOI |
10.3103/S0025654421070074 |
| Title |
On the Sequential Change in the Mechanisms of Production of Large Irreversible Deformations |
| Author(s) |
A.S. Begun (Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, 690041 Russia, ustinova@iacp.dvo.ru)
A.A. Burenin (Institute of Machinery and Metallurgy, Khabarovsk Federal Research Center, Far Eastern Branch, Russian Academy of Sciences, Komsomolsk-on-Amur, 681005 Russia, burenin@iacp.dvo.ru)
L.V. Kovtanyuk (Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Sciences, Vladivostok, 690041 Russia, lk@iacp.dvo.ru)
A.N. Prokudin (Institute of Machinery and Metallurgy, Khabarovsk Federal Research Center, Far Eastern Branch, Russian Academy of Sciences, Komsomolsk-on-Amur, 681005 Russia, sunbeam_85@mail.ru) |
| Abstract |
In this paper, following the formalism of thermodynamics, reversible and irreversible components of total deformations are accepted as thermodynamic parameters of state of the deformation
process. They are defined by formulating the appropriate differential equations of change (transfer
equations), whose flow terms determine the mutual influence of these thermodynamic parameters
during the process of deformation. In the transfer equation, the source is determined by two mechanisms producing irreversible deformations: viscous (creep) and plastic (plastic flow). The mechanism
of production of irreversible deformations changes at the elastoplastic boundaries from viscous to plastic, and vice versa during the unloading. Irreversible deformations are not divided into creep and plastic flow deformations; the achieved values of the former become the initial values for the subsequent
growth of the latter in new plastic flow conditions. When unloaded, the change occurs in the reverse
order. The problem of growth of irreversible deformations in conditions of viscometric deformation of
a cylindrical layer is considered as an example. |
| Keywords |
elasticity, creep, plastic flow, large deformations, viscometric deformation |
| Received |
25 May 2020 | Revised |
23 September 2020 | Accepted |
25 September 2020 |
| Link to Fulltext |
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