Thermomechanical Slip in Elastic Contact Between Identical Materials

The contact problem for interaction between an elastic sphere and an elastic half-space is considered taking into account partial thermomechanical frictional slip induced by thermal expansion of the half-space. The elastic constants of the bodies are assumed to be identical. The Amontons–Coulomb law...

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Autores principales:	Streliaiev Yurii, Martynyak Rostyslav, Chumak Kostyantyn
Formato:	article
Lenguaje:	EN
Publicado:	Sciendo 2021
Materias:	elastic contact thermomechanical slip stick and slip zones contact stresses integral equation numerical solution iterative method Mechanics of engineering. Applied mechanics TA349-359
Acceso en línea:	https://doaj.org/article/d51f7a4e36ab44218822f8dab1edccb9
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id	oai:doaj.org-article:d51f7a4e36ab44218822f8dab1edccb9
record_format	dspace
spelling	oai:doaj.org-article:d51f7a4e36ab44218822f8dab1edccb92021-12-05T14:11:05ZThermomechanical Slip in Elastic Contact Between Identical Materials2300-531910.2478/ama-2021-0024https://doaj.org/article/d51f7a4e36ab44218822f8dab1edccb92021-12-01T00:00:00Zhttps://doi.org/10.2478/ama-2021-0024https://doaj.org/toc/2300-5319The contact problem for interaction between an elastic sphere and an elastic half-space is considered taking into account partial thermomechanical frictional slip induced by thermal expansion of the half-space. The elastic constants of the bodies are assumed to be identical. The Amontons–Coulomb law is used to account for friction. The problem is reduced to non-linear boundary integral equations that correspond to the initial stage of mechanical loading and the subsequent stage of thermal loading. The dependences of the contact stress distribution, relative displacements of the contacting surfaces, dimensions of the stick and slip zones on temperature of the half-space are studied numerically. It was revealed that an increase in temperature causes increases in the shear contact stress and the relative shear displacements of the contacting surfaces. The absolute values of the shear contact stress reach their maximum at the boundaries of the stick zones. The greatest value of the moduli of the relative shear displacements are reached at the boundary of the contact region. The stick zone radius decreases monotonically according to a nonlinear law with increasing temperature.Streliaiev YuriiMartynyak RostyslavChumak KostyantynSciendoarticleelastic contactthermomechanical slipstick and slip zonescontact stressesintegral equationnumerical solutioniterative methodMechanics of engineering. Applied mechanicsTA349-359ENActa Mechanica et Automatica , Vol 15, Iss 4, Pp 187-192 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	elastic contact thermomechanical slip stick and slip zones contact stresses integral equation numerical solution iterative method Mechanics of engineering. Applied mechanics TA349-359
spellingShingle	elastic contact thermomechanical slip stick and slip zones contact stresses integral equation numerical solution iterative method Mechanics of engineering. Applied mechanics TA349-359 Streliaiev Yurii Martynyak Rostyslav Chumak Kostyantyn Thermomechanical Slip in Elastic Contact Between Identical Materials
description	The contact problem for interaction between an elastic sphere and an elastic half-space is considered taking into account partial thermomechanical frictional slip induced by thermal expansion of the half-space. The elastic constants of the bodies are assumed to be identical. The Amontons–Coulomb law is used to account for friction. The problem is reduced to non-linear boundary integral equations that correspond to the initial stage of mechanical loading and the subsequent stage of thermal loading. The dependences of the contact stress distribution, relative displacements of the contacting surfaces, dimensions of the stick and slip zones on temperature of the half-space are studied numerically. It was revealed that an increase in temperature causes increases in the shear contact stress and the relative shear displacements of the contacting surfaces. The absolute values of the shear contact stress reach their maximum at the boundaries of the stick zones. The greatest value of the moduli of the relative shear displacements are reached at the boundary of the contact region. The stick zone radius decreases monotonically according to a nonlinear law with increasing temperature.
format	article
author	Streliaiev Yurii Martynyak Rostyslav Chumak Kostyantyn
author_facet	Streliaiev Yurii Martynyak Rostyslav Chumak Kostyantyn
author_sort	Streliaiev Yurii
title	Thermomechanical Slip in Elastic Contact Between Identical Materials
title_short	Thermomechanical Slip in Elastic Contact Between Identical Materials
title_full	Thermomechanical Slip in Elastic Contact Between Identical Materials
title_fullStr	Thermomechanical Slip in Elastic Contact Between Identical Materials
title_full_unstemmed	Thermomechanical Slip in Elastic Contact Between Identical Materials
title_sort	thermomechanical slip in elastic contact between identical materials
publisher	Sciendo
publishDate	2021
url	https://doaj.org/article/d51f7a4e36ab44218822f8dab1edccb9
work_keys_str_mv	AT streliaievyurii thermomechanicalslipinelasticcontactbetweenidenticalmaterials AT martynyakrostyslav thermomechanicalslipinelasticcontactbetweenidenticalmaterials AT chumakkostyantyn thermomechanicalslipinelasticcontactbetweenidenticalmaterials
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Thermomechanical Slip in Elastic Contact Between Identical Materials

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