Micromechanical analysis of friction anisotropy in rough elastic contacts

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:51

Article

Stupkiewicz, Stanislaw¹  Lewandowski, Maciej J.^1,2  Lengiewicz, Jakub¹ 

[1] Polish Acad Sci, Inst Fundamental Technol Res IPPT, PL-02106 Warsaw, Poland

[2] Warsaw Univ Technol, Fac Civil Engn, PL-00637 Warsaw, Poland

关键词: Contact;    Friction;    Anisotropy;    Roughness;    Micromechanics;   

DOI  :  10.1016/j.ijsolstr.2014.07.013

来源: Elsevier

【 摘 要 】

Computational contact homogenization approach is applied to study friction anisotropy resulting from asperity interaction in elastic contacts. Contact of rough surfaces with anisotropic roughness is considered with asperity contact at the micro scale being governed by the isotropic Coulomb friction model. Application of a micro-to-macro scale transition scheme yields a macroscopic friction model with orientation- and pressure-dependent macroscopic friction coefficient. The macroscopic slip rule is found to exhibit a weak non-associativity in the tangential plane, although the slip rule at the microscale is associated in the tangential plane. Counterintuitive effects are observed for compressible materials, in particular, for auxetic materials. (C) 2014 Elsevier Ltd. All rights reserved.

【 授权许可】

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