Characterising the friction coefficient between rubber O-rings and a rigid surface under extreme pressures

Previous research into the friction behaviour of elastomers has typically focused on the effects of velocity, contact pressure, counter surface and lubrication on the coefficient of friction. O-ring type elastomer seals are common in many different industries. Friction plays a critical role during t...

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Autores principales:	Eduardo Yanes, Nicola M. Pugno, Julien Ramier, Benjamin Berryhill, James JC. Busfield
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Rubber Friction High pressure Fluoroelastomer Experiment Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/903f127fd2e945a7a3f6cab2b2517538
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spelling	oai:doaj.org-article:903f127fd2e945a7a3f6cab2b25175382021-11-14T04:27:46ZCharacterising the friction coefficient between rubber O-rings and a rigid surface under extreme pressures0142-941810.1016/j.polymertesting.2021.107378https://doaj.org/article/903f127fd2e945a7a3f6cab2b25175382021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S0142941821003238https://doaj.org/toc/0142-9418Previous research into the friction behaviour of elastomers has typically focused on the effects of velocity, contact pressure, counter surface and lubrication on the coefficient of friction. O-ring type elastomer seals are common in many different industries. Friction plays a critical role during the setting and in service of these components. An experimental O-ring friction testing rig has been developed that can measure the effects of sliding speed and hydrostatic pressure on elastomer friction. Finite element analysis (FEA) packages can adopt fixed friction coefficients or ones that are pressure dependent. For the latter case, the dependence of the frictional behaviour is typically obtained from the instantaneous stress response at any given pressure and then related to the normal force response. The friction rig described in this paper uses industry standard dimensions for the O-ring gland, the pre-compression levels, extrusion gap size and pressure rating. The coefficient of friction is derived by dividing the measured friction force by the normal force, which was determined using an FEA modelling approach, as it could not be measured directly. Finally, a relationship between the frictional velocity and surface roughness is obtained in order to provide a frequency dependent Coefficient of Friction (CoF) that is easily translatable between surfaces.Eduardo YanesNicola M. PugnoJulien RamierBenjamin BerryhillJames JC. BusfieldElsevierarticleRubberFrictionHigh pressureFluoroelastomerExperimentPolymers and polymer manufactureTP1080-1185ENPolymer Testing, Vol 104, Iss , Pp 107378- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Rubber Friction High pressure Fluoroelastomer Experiment Polymers and polymer manufacture TP1080-1185
spellingShingle	Rubber Friction High pressure Fluoroelastomer Experiment Polymers and polymer manufacture TP1080-1185 Eduardo Yanes Nicola M. Pugno Julien Ramier Benjamin Berryhill James JC. Busfield Characterising the friction coefficient between rubber O-rings and a rigid surface under extreme pressures
description	Previous research into the friction behaviour of elastomers has typically focused on the effects of velocity, contact pressure, counter surface and lubrication on the coefficient of friction. O-ring type elastomer seals are common in many different industries. Friction plays a critical role during the setting and in service of these components. An experimental O-ring friction testing rig has been developed that can measure the effects of sliding speed and hydrostatic pressure on elastomer friction. Finite element analysis (FEA) packages can adopt fixed friction coefficients or ones that are pressure dependent. For the latter case, the dependence of the frictional behaviour is typically obtained from the instantaneous stress response at any given pressure and then related to the normal force response. The friction rig described in this paper uses industry standard dimensions for the O-ring gland, the pre-compression levels, extrusion gap size and pressure rating. The coefficient of friction is derived by dividing the measured friction force by the normal force, which was determined using an FEA modelling approach, as it could not be measured directly. Finally, a relationship between the frictional velocity and surface roughness is obtained in order to provide a frequency dependent Coefficient of Friction (CoF) that is easily translatable between surfaces.
format	article
author	Eduardo Yanes Nicola M. Pugno Julien Ramier Benjamin Berryhill James JC. Busfield
author_facet	Eduardo Yanes Nicola M. Pugno Julien Ramier Benjamin Berryhill James JC. Busfield
author_sort	Eduardo Yanes
title	Characterising the friction coefficient between rubber O-rings and a rigid surface under extreme pressures
title_short	Characterising the friction coefficient between rubber O-rings and a rigid surface under extreme pressures
title_full	Characterising the friction coefficient between rubber O-rings and a rigid surface under extreme pressures
title_fullStr	Characterising the friction coefficient between rubber O-rings and a rigid surface under extreme pressures
title_full_unstemmed	Characterising the friction coefficient between rubber O-rings and a rigid surface under extreme pressures
title_sort	characterising the friction coefficient between rubber o-rings and a rigid surface under extreme pressures
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/903f127fd2e945a7a3f6cab2b2517538
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Characterising the friction coefficient between rubber O-rings and a rigid surface under extreme pressures

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