Article Dans Une Revue Tribology Letters Année : 2008

Strain and Stress Fields During Scratch Tests on Amorphous Polymers: Influence of the Local Friction

Robert Schirrer
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Résumé

In this paper, we present results deduced from three-dimensional finite element simulations of scratching, with spherical indenter geometry at different imposed ratios, a/R in the range of 0.1–0.9. For each simulated ratio a/R, the local friction has been increased from 0 to 1. The paper aims at studying the tangential scratch behaviour of homogeneous polymeric substrates, considered in first approximation as elastic linear-hardening plastic material. For only elastic–plastic contacts, without any strain rate or temperature effects, it focuses on studying some characteristic response due to spherical scratching process as a function of scratching conditions (a/R, μ loc ) such as the stress and plastic strain fields, including the plastic zone dimension and the definition of an volume average plastic strain.

Dates et versions

hal-00367830 , version 1 (12-03-2009)

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Citer

H. Pelletier, C. Gauthier, Robert Schirrer. Strain and Stress Fields During Scratch Tests on Amorphous Polymers: Influence of the Local Friction. Tribology Letters, 2008, 32 (2), pp.109-116. ⟨10.1007/s11249-008-9368-4⟩. ⟨hal-00367830⟩
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