Liquid lubricants in elastohydrodynamic lubrication (EHL) are subjected to high pressures of the magnitude of 109 N/m2 (GPa). Under these high pressures, the lubricants in room temperatures are usually in the glassy state behaving as amorphous solids. Similar to the polymers, the lubricants exhibit elastic or visco-elastic behavior under low-shear-stress loading and plastic or visco-plastic behavior with high shear stresses. Recent laboratory experiments have revealed two types of localized shear responses that can take place in the lubricant bulk. The localized shear may be active in the EHL film and may play a significant role in the responses exhibited by the contact conjunction. A typical example is the EHL traction. This paper summarizes the up-to-date research related to the shear localizations.
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ASME/STLE 2004 International Joint Tribology Conference
October 24–27, 2004
Long Beach, California, USA
Conference Sponsors:
- Tribology Division
ISBN:
0-7918-4181-2
PROCEEDINGS PAPER
On the Shear Bands and Shear Localizations in EHL Films Available to Purchase
L. Chang
L. Chang
Pennsylvania State University, University Park, PA
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L. Chang
Pennsylvania State University, University Park, PA
Paper No:
TRIB2004-64289, pp. 495-501; 7 pages
Published Online:
December 22, 2008
Citation
Chang, L. "On the Shear Bands and Shear Localizations in EHL Films." Proceedings of the ASME/STLE 2004 International Joint Tribology Conference. ASME/STLE 2004 International Joint Tribology Conference, Parts A and B. Long Beach, California, USA. October 24–27, 2004. pp. 495-501. ASME. https://doi.org/10.1115/TRIB2004-64289
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