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Investigation of size effects in thin fibers

Autor: Z. V. Boiko, Taras Nahirnyj

Publikováno v: Journal of Mathematical Sciences. 190:786-795

Within the framework of the local gradient approach in thermomechanics, we have studied size effects in thin fibers by the example of a model problem for a solid cylinder. The dependence of the surface stresses, bond energy, and intensity of force lo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2331f9dc7cde129c71f3298deb1fc80e
https://doi.org/10.1007/s10958-013-1288-7

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On the choice of boundary conditions in problems of the local gradient approach in thermomechanics

Autor: K. А. Chervinka, Т. S. Nahirnyj, Z. V. Boiko

Publikováno v: Journal of Mathematical Sciences. 186:130-138

Within the framework of the local gradient approach in thermomechanics, we formulate key systems of equations of a mathematical model that describes the behavior of elastic bodies with regard for effects of a local heterogeneity. In this case, we cho

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8119c434626e95497fe57a52464b41d5
https://doi.org/10.1007/s10958-012-0979-9

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Effect of dissipative processes on the near-surface inhomogeneity of a hollow cylinder

Autor: Z. V. Boiko, T. S. Nahirnyi, Ya. Yo. Burak

Publikováno v: Journal of Mathematical Sciences. 184:88-100

UDC 539.3 We formulate the basic relations of a mathematical model of mechanics of elastic deformable systems that describes the formation of a near-surface inhomogeneity caused by both the process of local mass displacement and dissipative processes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::88fb488bb6da155c9d4d938e97ee75bc
https://doi.org/10.1007/s10958-012-0855-7

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Effect of the conditions of the coliquefaction of Ukrainian sulfur coals and polyolefins on the yield and composition of products

Autor: M. I. Chernyshova, T. G. Shendrik, S. V. Grishchuk, A. M. Osipov, Z. V. Boiko

Publikováno v: Solid Fuel Chemistry. 45:89-94

The coliquefaction of sulfur lignites and bituminous coals from Ukraine with polyethylene and polypropylene wastes was studied. The gas environment and the nature of catalysts were varied. The degree of conversion of the mixture and the yields of oil

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bcec3ad5c6f11e298d0206fd2176115d
https://doi.org/10.3103/s0361521911020066

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On the energy approach and thermodynamic foundations of the variational formulation of boundary-value problems of thermomechanics with regard for near-surface phenomena

Autor: Ya. I. Burak, Z. V. Boiko, H. I. Moroz

Publikováno v: Journal of Mathematical Sciences. 170:629-641

Within the framework of the energy, thermodynamic, and variational approaches, we propose a mathematical model for the description of thermomechanical processes in elastic deformable systems with regard for dissipative effects in the formation of nea

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c8d03f2a0f28d3b2ddf57bbeb9400864
https://doi.org/10.1007/s10958-010-0108-6

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Mathematical modeling and optimization of thermoelastic systems based on a combination of energy and thermodynamic approaches

Autor: H. I. Moroz, Z. V. Boiko, Ya. Yo. Burak

Publikováno v: Journal of Mathematical Sciences. 167:154-161

We propose to apply energy and thermodynamic approaches to the construction of mathematical models describing thermomechanical processes in elastic deformable dissipative systems. Basic relations for the description of both a local thermodynamic stat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5cf1665b22ca65549dec203c80e0ed64
https://doi.org/10.1007/s10958-010-9911-3

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