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Comment on “History, Origins and Prediction of Elastohydrodynamic Friction” by Spikes and Jie
G.W. Woodruff School of Mechanical Engineering, Centre for High Pressure Rheology, Georgia Institute of Technology, Atlanta.
LaMCoS UMR5259, Université de Lyon, INSA-Lyon.
Department of Mechanical Engineering, National Institute of Technology, Kurukshetra.
Institut fûr Maschinenkonstruktion und Tribologie, Leibniz Universitaet Hannover.
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2015 (English)In: Tribology letters, ISSN 1023-8883, E-ISSN 1573-2711, Vol. 58, no 1, article id 16Article in journal (Refereed) Published
Abstract [en]

Progress in the classical field of EHL has for decades been paralyzed by the assumption that shear thinning should be indistinguishable from the shear dependence of the viscosity of a liquid heated by viscous dissipation and that the parameters of this simple shear dependence can be obtained from the shape of a friction curve. In the last few years, by abandoning this assumption and employing real viscosity measured with viscometers, there has been revolutionary progress in predicting film thickness and friction. Now, Spikes and Jie conclude that the previous assumption has as much merit as the use of viscosity measured in viscometers. This suggestion may be popular among those who wish to ignore viscometer measurements in favor of extracting properties from friction curves. However, within the subject article, there are numerous misstatements of fact and misrepresentations by omission, and the recent progress using real viscosity is not acknowledged. The debate has degenerated into a friction curve fitting competition which is not helpful. The great progress of the last few years would not have been possible using the concepts and methods espoused in this article

Place, publisher, year, edition, pages
2015. Vol. 58, no 1, article id 16
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-3976DOI: 10.1007/s11249-015-0481-xISI: 000351389500016Scopus ID: 2-s2.0-84924767318Local ID: 1d3f5af4-6b25-480c-b8a6-8f193b64383fOAI: oai:DiVA.org:ltu-3976DiVA, id: diva2:976838
Note
Validerad; 2015; Nivå 2; 20150311 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2023-09-05Bibliographically approved

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