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JOURNALS // Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki // Archive

Zh. Vychisl. Mat. Mat. Fiz., 2019 Volume 59, Number 9, Pages 1532–1536 (Mi zvmmf10951)

This article is cited in 1 paper

Effect of heat on deformations in material with a defect

E. V. Astakhova, A. V. Glushko, E. A. Loginova

Voronezh State University, Voronezh, 394018 Russia

Abstract: A system of thermoelasticity equations is considered. Boundary transmission conditions are specified by the differences in temperature, heat fluxes, deformations, and their first derivatives on the boundary. The stationary case is studied. The boundary (crack) is represented by the interval $[ - 1;1]$ of the $O{{x}_{1}}$ axis. The given problem is investigated, its solution is found, and the well-posedness of its formulation is proved. The results of previous works are generalized. The subject of greatest interest is the asymptotic behavior, as ${{x}_{1}} \to \pm 1, {{x}_{2}}\to 0$, of the displacements $u({{x}_{1}},{{x}_{2}}),$ $v({{x}_{1}},{{x}_{2}})$ of a point $({{x}_{1}},{{x}_{2}})$ under material deformations and the asymptotic behavior of their derivatives. Here, the functions $u({{x}_{1}},{{x}_{2}}),$ $v({{x}_{1}},{{x}_{2}})$ are assumed to depend on the material temperature $T({{x}_{1}},{{x}_{2}})$ at the point $({{x}_{1}},{{x}_{2}})$.

Key words: transmission problems, asymptotics with respect to smoothness, system of thermoelasticity equations, heat conduction, deformation, boundary conditions.

UDC: 517.929.7

Received: 21.08.2018
Revised: 28.02.2019
Accepted: 15.05.2019

DOI: 10.1134/S0044466919090059


 English version:
Computational Mathematics and Mathematical Physics, 2019, 59:9, 1470–1474

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