Influence of different environments on the sliding friction of Ultra-high-molecular-weight polyethylene (UHMWPE)
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Zivić, FatimaAdamović, Dragan
Mitrović, Slobodan
Grujović, Nenad
Tanasković, Jovan
Stojadinović, Ivan
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Dynamic friction coefficient (COF) of the reciprocating sliding contact of the conventional UHMWPE, was investigated in four different environments (dry contact; distilled water; pure Ringer's solution and with PMMA particles), at five values of low normal load (0.1-1 N) and three values of sliding speed (4 - 12 mm/s). Significant differences of COF values occurred at the lowest load (0.1 N), whereas sliding speed did not influence COF values. Addition of PMMA particles in Ringer's solution produced significant increase of COF values, especially at the lowest load of 0.1 N. For the dry contact and the highest load (1 N), steady state was reached shortly after the beginning of the test and friction coefficient had uniform behaviour. In the case of wet environment and the lowest load, steady state was not reached and the friction coefficient exhibited non-reproducible random behaviour. According to the Hertz theory, 0.5 N load corresponded to the elastic stress of 48.7 MPa, thus surpassi...ng the values of the elastic limits, hardness and true yield stress of the UHMWPE, and the behaviour of the friction coefficient was drastically different below and above this load value. It can be assumed that below the 0.5 N load, viscoelastic response, accompanied with plastic deformation is dominant, with transition to mainly plastic deformation for the higher loads.
Keywords:
water / UHMWPE / Ringer's solution / PMMA particles / friction coefficientSource:
Proceedings of The Institution of Mechanical Engineers Part J-Journal of Engineering Tribology, 2021Publisher:
- Sage Publications Ltd, London
Funding / projects:
- EIT's HEI Initiative SMART-2M project
- EIT Raw Materials - European Union
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200107 (University of Kragujevac, Faculty of Engineering) (RS-MESTD-inst-2020-200107)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200105 (University of Belgrade, Faculty of Mechanical Engineering) (RS-MESTD-inst-2020-200105)
DOI: 10.1177/13506501211053100
ISSN: 1350-6501
WoS: 000716099600001
Scopus: 2-s2.0-85118861804
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Mašinski fakultetTY - JOUR AU - Zivić, Fatima AU - Adamović, Dragan AU - Mitrović, Slobodan AU - Grujović, Nenad AU - Tanasković, Jovan AU - Stojadinović, Ivan PY - 2021 UR - https://machinery.mas.bg.ac.rs/handle/123456789/99 AB - Dynamic friction coefficient (COF) of the reciprocating sliding contact of the conventional UHMWPE, was investigated in four different environments (dry contact; distilled water; pure Ringer's solution and with PMMA particles), at five values of low normal load (0.1-1 N) and three values of sliding speed (4 - 12 mm/s). Significant differences of COF values occurred at the lowest load (0.1 N), whereas sliding speed did not influence COF values. Addition of PMMA particles in Ringer's solution produced significant increase of COF values, especially at the lowest load of 0.1 N. For the dry contact and the highest load (1 N), steady state was reached shortly after the beginning of the test and friction coefficient had uniform behaviour. In the case of wet environment and the lowest load, steady state was not reached and the friction coefficient exhibited non-reproducible random behaviour. According to the Hertz theory, 0.5 N load corresponded to the elastic stress of 48.7 MPa, thus surpassing the values of the elastic limits, hardness and true yield stress of the UHMWPE, and the behaviour of the friction coefficient was drastically different below and above this load value. It can be assumed that below the 0.5 N load, viscoelastic response, accompanied with plastic deformation is dominant, with transition to mainly plastic deformation for the higher loads. PB - Sage Publications Ltd, London T2 - Proceedings of The Institution of Mechanical Engineers Part J-Journal of Engineering Tribology T1 - Influence of different environments on the sliding friction of Ultra-high-molecular-weight polyethylene (UHMWPE) DO - 10.1177/13506501211053100 ER -
@article{ author = "Zivić, Fatima and Adamović, Dragan and Mitrović, Slobodan and Grujović, Nenad and Tanasković, Jovan and Stojadinović, Ivan", year = "2021", abstract = "Dynamic friction coefficient (COF) of the reciprocating sliding contact of the conventional UHMWPE, was investigated in four different environments (dry contact; distilled water; pure Ringer's solution and with PMMA particles), at five values of low normal load (0.1-1 N) and three values of sliding speed (4 - 12 mm/s). Significant differences of COF values occurred at the lowest load (0.1 N), whereas sliding speed did not influence COF values. Addition of PMMA particles in Ringer's solution produced significant increase of COF values, especially at the lowest load of 0.1 N. For the dry contact and the highest load (1 N), steady state was reached shortly after the beginning of the test and friction coefficient had uniform behaviour. In the case of wet environment and the lowest load, steady state was not reached and the friction coefficient exhibited non-reproducible random behaviour. According to the Hertz theory, 0.5 N load corresponded to the elastic stress of 48.7 MPa, thus surpassing the values of the elastic limits, hardness and true yield stress of the UHMWPE, and the behaviour of the friction coefficient was drastically different below and above this load value. It can be assumed that below the 0.5 N load, viscoelastic response, accompanied with plastic deformation is dominant, with transition to mainly plastic deformation for the higher loads.", publisher = "Sage Publications Ltd, London", journal = "Proceedings of The Institution of Mechanical Engineers Part J-Journal of Engineering Tribology", title = "Influence of different environments on the sliding friction of Ultra-high-molecular-weight polyethylene (UHMWPE)", doi = "10.1177/13506501211053100" }
Zivić, F., Adamović, D., Mitrović, S., Grujović, N., Tanasković, J.,& Stojadinović, I.. (2021). Influence of different environments on the sliding friction of Ultra-high-molecular-weight polyethylene (UHMWPE). in Proceedings of The Institution of Mechanical Engineers Part J-Journal of Engineering Tribology Sage Publications Ltd, London.. https://doi.org/10.1177/13506501211053100
Zivić F, Adamović D, Mitrović S, Grujović N, Tanasković J, Stojadinović I. Influence of different environments on the sliding friction of Ultra-high-molecular-weight polyethylene (UHMWPE). in Proceedings of The Institution of Mechanical Engineers Part J-Journal of Engineering Tribology. 2021;. doi:10.1177/13506501211053100 .
Zivić, Fatima, Adamović, Dragan, Mitrović, Slobodan, Grujović, Nenad, Tanasković, Jovan, Stojadinović, Ivan, "Influence of different environments on the sliding friction of Ultra-high-molecular-weight polyethylene (UHMWPE)" in Proceedings of The Institution of Mechanical Engineers Part J-Journal of Engineering Tribology (2021), https://doi.org/10.1177/13506501211053100 . .