Abstract

Persson's multiscale contact mechanics theory combined with a multiscale Brillouin-Prandtl-Tomlinson model is used to show that on the basis of these models “dry friction” [i.e., kinetic friction that remains at exceedingly small velocities (but still above the creep range) close to its value at higher velocities] should almost always occur for self-affine surfaces when the dominant interaction between two surfaces in contact is due to interatomic hard core repulsion, except for extremely smooth surfaces (i.e., surfaces with a Hurst index very close to 1).

Notes

Originally published in Physical Review E v.85 (2012): 027102. DOI: 10.1103/PhysRevE.85.027102.

Keywords

dry friction, Brillouin-Prandtl-Tomlinson model, Persson theory

Subject Categories

Surface roughness, Friction, Contact mechanics

Disciplines

Condensed Matter Physics | Physics

Publisher

American Physical Society

Publication Date

2-24-2012

Rights Information

Copyright (2012) American Physical Society.

Rights Holder

American Physical Society

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