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A mixed model to predict friction forces in lubricated contact with non‐newtonian fluids
Author(s) -
Najji B.,
BouSaid B.
Publication year - 1992
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.3010050106
Subject(s) - rheology , non newtonian fluid , newtonian fluid , lubrication , mechanics , finite element method , shear stress , shear (geology) , materials science , classical mechanics , mathematics , physics , thermodynamics , composite material
A mixed model to predict friction forces in thermohydrodynamic lubricated contacts with non‐Newtonian fluids is proposed, with an integral formulation and a finite element method resolution. The mixed model is used here for the first time in lubrication. It takes into account the implicit rheological laws. The shear stress field appears in this formulation as a nodal unknown and eases the use of rheological laws with yield criteria.