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IssuesArchive of Issues2020-6pp.791-799

Archive of Issues

Total articles in the database: 4918
In Russian (. . ): 2350
In English (Mech. Solids): 2568

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Burenin A.A. and Tkacheva A.V., "Piecewise Linear Plastic Potentials as a Tool for Calculating Plane Transient Temperature Stresses," Mech. Solids. 55 (6), 791-799 (2020)
Year 2020 Volume 55 Number 6 Pages 791-799
DOI 10.3103/S0025654420060059
Title Piecewise Linear Plastic Potentials as a Tool for Calculating Plane Transient Temperature Stresses
Author(s) Burenin A.A. (Institute of Machinery and Metallurgy of the Far East Branch of the Russian Academy of Sciences, Komsomolsk-on-Amur, 681005 Russia)
Tkacheva A.V. (Institute of Machinery and Metallurgy of the Far East Branch of the Russian Academy of Sciences, Komsomolsk-on-Amur, 681005 Russia, 4nansi4@mail.ru)
Abstract A numerical-analytical solution of a one-dimensional problem of the theory of temperature stresses on the evolution of plane stress states under conditions of heating and subsequent cooling of a round plate made of an elastoplastic material is constructed. The plate is heated in such a way that the level of the bell-shaped temperature distribution increases in proportion to the time up to the set maximum value. After that, the heating source is removed and then cooling occurs in natural conditions. It is shown that following the conditions of piecewise-linear plastic potentials at any calculated time of the deformation process, integration of the equilibrium equation establishes dependences connecting reversible and irreversible deformations and stresses with the temperature distribution. The yield point is assumed to be quadratically dependent on temperature; elastic moduli, specific heat and thermal expansion coefficient are considered constant. It was found that the problem under consideration in the framework of the Tresca-Saint Venant plastic potential has no solution, but it can be solved in the framework of the Ishlinsky-Ivlev plastic potential.
Keywords elasticity, plasticity, temperature stresses, plastic flow, unloading, reverse plastic flow
Received 18 July 2020Revised 23 July 2020Accepted 01 August 2020
Link to Fulltext https://link.springer.com/article/10.3103/S0025654420060059
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