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Friction

, Volume 7, Issue 6, pp 613–624 | Cite as

Model for the static friction coefficient in a full stick elastic-plastic coated spherical contact

  • Zhou ChenEmail author
  • Izhak Etsion
Open Access
Research Article

Abstract

Finite element analysis is used to investigate an elastic-plastic coated spherical contact in full stick contact condition under combined normal and tangential loading. Sliding inception is associated with a loss of tangential stiffness. The effect of coating thickness on the static friction coefficient is intensively investigated for the case of hard coatings. For this case, with the increase in coating thickness, the static friction coefficient first increases to its maximum value at a certain coating thickness, thereafter decreases, and eventually levels off. The effect of the normal load and material properties on this behavior is discussed. Finally, a model for the static friction coefficient as a function of the coating thickness is provided for a wide range of material properties and normal loading.

Keywords

contact mechanics elastic-plastic contact spherical contact static friction hard coatings 

Notes

Acknowledgment

This paper is part of IEA AMT IA technical activities.

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© The author(s) 2018

Open Access: The articles published in this journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringTechnionIsrael

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