Tribology Letters

, 67:120 | Cite as

Solid Flow Regimes Within Dry Sliding Contacts

  • Guilhem MollonEmail author
Original Paper


In this paper, we investigate the regimes of velocity accommodation and of load transmission within a dry sliding interface, in the presence of a solid and discontinuous interfacial layer (the so-called third body). To that end, an appropriate numerical framework called the multibody meshfree approach is used to implement a local model of such an interface, and a comprehensive dimensionless parametric study is performed in order to analyse the influence of the mechanical properties of the third body on the interfacial solid flow regimes, on the friction coefficient, and on the modes of energy dissipation. To that end, the concept of partial coefficient of friction is introduced. The numerical results demonstrate that the friction in the interface is limited by changes in the kinematics of the shear accommodation in the third-body layer and by the activation of different modes of energy dissipation (related either to surface area creation/destruction in the third-body layer or to bulk deformation of the solid matter composing it) which are uncorrelated in the parametric space of the mechanical properties of the third-body particles.


Friction Contact Third body Soft grains Shearing Flow regimes 


Compliance with Ethical Standards

Conflict of interest

The author acknowledges that this study contains original material, as a result of a purely academic study without any kind of private funding or conflict of interest. Its publication has been approved tacitly by the responsible authorities at the institute where the work has been carried out.

Supplementary material

Supplementary material 1 (AVI 135539 kb)

A video showing the flow regimes, the von Mises stress fields, and the local strain rate fields for some portions of the seven simulations A to G is provided as supplementary material to this paper.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Université de Lyon, LaMCoS, INSA-Lyon, CNRS UMR5259LyonFrance

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