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

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Abstract

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.

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  1. Institut Charles Sadron, UPR 22 CNRS, 23 rue du Loess, BP 84047, 67034, Strasbourg Cedex 2, France

    Hervé Pelletier, Christian Gauthier & Robert Schirrer

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  1. Hervé Pelletier
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  2. Christian Gauthier
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  3. Robert Schirrer
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Correspondence to Hervé Pelletier.

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Pelletier, H., Gauthier, C. & Schirrer, R. Strain and Stress Fields During Scratch Tests on Amorphous Polymers: Influence of the Local Friction. Tribol Lett 32, 109–116 (2008). https://doi.org/10.1007/s11249-008-9368-4

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  • DOI: https://doi.org/10.1007/s11249-008-9368-4

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