Extension of the Friction Mastercurve to Limiting Shear Stress Models

B.C. Jacod, Cornelis H. Venner, P.M. Lugt, Pieter Martin Lugt

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Abstract

A previous study of the behavior of friction in EHL contacts for the case of Eyring lubricant behavior resulted in a friction mastercurve. In this paper the same approach is applied to the case of limiting shear stress behavior. By means of numerical simulations the friction coefficient has been computed for a wide range of operating conditions and contact geometries. It is shown that the same two parameters that were found in the Eyring study, a characteristic shear stress, and a reduced coefficient of friction, also govern the behavior of the friction for the case of limiting shear stress models. When the calculated traction data is plotted as a function of these two parameters all results for different cases lie close to a single curve. Experimentally measured traction data is used to validate the observed behavior. Finally, the equations of the mastercurves for both types of rheological model are compared resulting in a relation between the Eyring stress 0 and the limiting shear stress L.
Original languageUndefined
Pages (from-to)739-746
Number of pages7
JournalJournal of tribology - Transactions of the ASME
Volume125
Issue number4
DOIs
Publication statusPublished - 2003

Keywords

  • IR-47085
  • METIS-216909

Cite this

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title = "Extension of the Friction Mastercurve to Limiting Shear Stress Models",
abstract = "A previous study of the behavior of friction in EHL contacts for the case of Eyring lubricant behavior resulted in a friction mastercurve. In this paper the same approach is applied to the case of limiting shear stress behavior. By means of numerical simulations the friction coefficient has been computed for a wide range of operating conditions and contact geometries. It is shown that the same two parameters that were found in the Eyring study, a characteristic shear stress, and a reduced coefficient of friction, also govern the behavior of the friction for the case of limiting shear stress models. When the calculated traction data is plotted as a function of these two parameters all results for different cases lie close to a single curve. Experimentally measured traction data is used to validate the observed behavior. Finally, the equations of the mastercurves for both types of rheological model are compared resulting in a relation between the Eyring stress 0 and the limiting shear stress L.",
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Extension of the Friction Mastercurve to Limiting Shear Stress Models. / Jacod, B.C.; Venner, Cornelis H.; Lugt, P.M.; Lugt, Pieter Martin.

In: Journal of tribology - Transactions of the ASME, Vol. 125, No. 4, 2003, p. 739-746.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Extension of the Friction Mastercurve to Limiting Shear Stress Models

AU - Jacod, B.C.

AU - Venner, Cornelis H.

AU - Lugt, P.M.

AU - Lugt, Pieter Martin

PY - 2003

Y1 - 2003

N2 - A previous study of the behavior of friction in EHL contacts for the case of Eyring lubricant behavior resulted in a friction mastercurve. In this paper the same approach is applied to the case of limiting shear stress behavior. By means of numerical simulations the friction coefficient has been computed for a wide range of operating conditions and contact geometries. It is shown that the same two parameters that were found in the Eyring study, a characteristic shear stress, and a reduced coefficient of friction, also govern the behavior of the friction for the case of limiting shear stress models. When the calculated traction data is plotted as a function of these two parameters all results for different cases lie close to a single curve. Experimentally measured traction data is used to validate the observed behavior. Finally, the equations of the mastercurves for both types of rheological model are compared resulting in a relation between the Eyring stress 0 and the limiting shear stress L.

AB - A previous study of the behavior of friction in EHL contacts for the case of Eyring lubricant behavior resulted in a friction mastercurve. In this paper the same approach is applied to the case of limiting shear stress behavior. By means of numerical simulations the friction coefficient has been computed for a wide range of operating conditions and contact geometries. It is shown that the same two parameters that were found in the Eyring study, a characteristic shear stress, and a reduced coefficient of friction, also govern the behavior of the friction for the case of limiting shear stress models. When the calculated traction data is plotted as a function of these two parameters all results for different cases lie close to a single curve. Experimentally measured traction data is used to validate the observed behavior. Finally, the equations of the mastercurves for both types of rheological model are compared resulting in a relation between the Eyring stress 0 and the limiting shear stress L.

KW - IR-47085

KW - METIS-216909

U2 - 10.1115/1.1572513

DO - 10.1115/1.1572513

M3 - Article

VL - 125

SP - 739

EP - 746

JO - Journal of tribology - Transactions of the ASME

JF - Journal of tribology - Transactions of the ASME

SN - 0742-4787

IS - 4

ER -