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...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-12-01
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| Series: | Polymer Testing |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0142941821003238 |
| _version_ | 1818402699432951808 |
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| 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 |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-14T08:12:31Z |
| format | Article |
| id | doaj.art-903f127fd2e945a7a3f6cab2b2517538 |
| institution | Directory Open Access Journal |
| issn | 0142-9418 |
| language | English |
| last_indexed | 2024-12-14T08:12:31Z |
| publishDate | 2021-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Polymer Testing |
| spelling | doaj.art-903f127fd2e945a7a3f6cab2b25175382022-12-21T23:10:03ZengElsevierPolymer Testing0142-94182021-12-01104107378Characterising the friction coefficient between rubber O-rings and a rigid surface under extreme pressuresEduardo Yanes0Nicola M. Pugno1Julien Ramier2Benjamin Berryhill3James JC. Busfield4Soft Matter Group, School of Engineering & Materials Science, Queen Mary University of London, Mile End Road, London, E1 4NS, United Kingdom; Corresponding author.Laboratory of Bio-Inspired, Bionic, Nano, Meta Materials & Mechanics, Department of Civil, Environmental, and Mechanical Engineering, University of Trento, Via Mesiano 77, 38123, Trento, Italy; Soft Matter Group, School of Engineering & Materials Science, Queen Mary University of London, Mile End Road, London, E1 4NS, United KingdomSchlumberger Cambridge Research Ltd, UKMaterials, Modeling, & Mechanical Technologies, Schlumberger, 200 Gillingham Lane, Sugar Land, TX, 77478, United StatesSoft Matter Group, School of Engineering & Materials Science, Queen Mary University of London, Mile End Road, London, E1 4NS, United KingdomPrevious 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.http://www.sciencedirect.com/science/article/pii/S0142941821003238RubberFrictionHigh pressureFluoroelastomerExperiment |
| spellingShingle | 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 Polymer Testing Rubber Friction High pressure Fluoroelastomer Experiment |
| title | 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_short | 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 |
| topic | Rubber Friction High pressure Fluoroelastomer Experiment |
| url | http://www.sciencedirect.com/science/article/pii/S0142941821003238 |
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