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Multiscale analysis of a model problem of a thermoelastic body with thin inclusions. / Sazhenkov, S. A.; Fankina, I. V.; Furtsev, A. I. и др.
в: Siberian Electronic Mathematical Reports, Том 18, 2021, стр. 282-318.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Multiscale analysis of a model problem of a thermoelastic body with thin inclusions
AU - Sazhenkov, S. A.
AU - Fankina, I. V.
AU - Furtsev, A. I.
AU - Gilev, P. V.
AU - Gorynin, A. G.
AU - Gorynina, O. G.
AU - Karnaev, V. M.
AU - Leonova, E. I.
N1 - Funding Information: Sazhenkov, S.A., Fankina, I.V., Furtsev, A.I., Gilev, P.V., Gorynin, A.G., Goryn-ina, O.G., Karnaev, V.M., Leonova, E.I., Multiscale Analysis of a Model Problem of a Thermoelastic Body with Thin Inclusions. © 2021 Sazhenkov S.A., Fankina I.V., Furtsev A.I., Gilev P.V., Gorynin A.G., Gorynina O.G., Karnaev V.M., Leonova E.I. The work was carried out with the financial support from the Mathematical Center in Akadem-gorodok, Novosibirsk, Russia (Agreement with the Ministry of Science and Higher Education of the Russian Federation no. 075-15-2019-1613). Received February, 29, 2021, published March, 23, 2021. Publisher Copyright: © 2021 Sazhenkov S.A., Fankina I.V., Furtsev A.I., Gilev PA7., Gorynin A.G., Gorynina O.G., Karnaev A’.Μ., Leonova E.I. All Rights Reserved. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021
Y1 - 2021
N2 - A model statical problem for a thermoelastic body with thin inclusions is studied. This problem incorporates two small positive parameters δ and ε, which describe the thickness of an individual inclusion and the distance between two neighboring inclusions, respectively. Relying on the variational formulation of the problem, by means of the modern methods of asymptotic analysis, we investigate the behavior of solutions as δ and ε tend to zero. As the result, we construct two models corresponding to the limiting cases. At first, as δ→0, we derive a lim iting model in which inclusions are thin (of zero diameter). Then, from this limiting model, as ε→ 0, we derive a homogenized model, which describes effective behavior on the macroscopic scale, i.e., on the scale where there is no need to take into account each individual inclusion. The limiting passage as ε 0 is based on the use of homogenization theory. The final section of the article presents a series of numerical experiments for the established limiting models.
AB - A model statical problem for a thermoelastic body with thin inclusions is studied. This problem incorporates two small positive parameters δ and ε, which describe the thickness of an individual inclusion and the distance between two neighboring inclusions, respectively. Relying on the variational formulation of the problem, by means of the modern methods of asymptotic analysis, we investigate the behavior of solutions as δ and ε tend to zero. As the result, we construct two models corresponding to the limiting cases. At first, as δ→0, we derive a lim iting model in which inclusions are thin (of zero diameter). Then, from this limiting model, as ε→ 0, we derive a homogenized model, which describes effective behavior on the macroscopic scale, i.e., on the scale where there is no need to take into account each individual inclusion. The limiting passage as ε 0 is based on the use of homogenization theory. The final section of the article presents a series of numerical experiments for the established limiting models.
KW - composite material
KW - generalized solution
KW - homogenization
KW - linear thermoelasticity
KW - numerical experiment
KW - thin inclusion
KW - two-scale convergence
UR - http://www.scopus.com/inward/record.url?scp=85104753189&partnerID=8YFLogxK
U2 - 10.33048/semi.2021.18.020
DO - 10.33048/semi.2021.18.020
M3 - Article
AN - SCOPUS:85104753189
VL - 18
SP - 282
EP - 318
JO - Сибирские электронные математические известия
JF - Сибирские электронные математические известия
SN - 1813-3304
ER -
ID: 28498633