Document Detail


On the transition from boundary lubrication to hydrodynamic lubrication in soft contacts.
MedLine Citation:
PMID:  21825448     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
We consider the contact between elastically soft solids with randomly rough surfaces in sliding contact in a fluid, which is assumed to be Newtonian with constant (pressure-independent) viscosity. We discuss the nature of the transition from boundary lubrication at low sliding velocity, where direct solid-solid contact occurs, to hydrodynamic lubrication at high sliding velocity, where the solids are separated by a thin fluid film. We consider both hydrophilic and hydrophobic systems, and cylinder-on-flat and sphere-on-flat sliding configurations. We show that, for elastically soft solids such as rubber, including cavitation or not results in nearly the same friction.
Authors:
B N J Persson; M Scaraggi
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Publication Detail:
Type:  Journal Article     Date:  2009-03-11
Journal Detail:
Title:  Journal of physics. Condensed matter : an Institute of Physics journal     Volume:  21     ISSN:  0953-8984     ISO Abbreviation:  J Phys Condens Matter     Publication Date:  2009 May 
Date Detail:
Created Date:  2011-08-09     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101165248     Medline TA:  J Phys Condens Matter     Country:  England    
Other Details:
Languages:  eng     Pagination:  185002     Citation Subset:  -    
Affiliation:
IFF, FZ-Jülich, D-52425 Jülich, Germany.
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