Modelling of ploughing in a single-asperity sliding contact using material point method

Tanmaya Mishra* (Corresponding Author), Georg C. Ganzenmüller, Matthijn de Rooij, Meghshyam Shisode, Javad Hazrati, Dirk J. Schipper

*Corresponding author for this work

    Research output: Contribution to journalArticleAcademicpeer-review

    7 Citations (Scopus)
    2 Downloads (Pure)

    Abstract

    Loading and sliding of a rigid asperity over a substrate results in friction due to shearing of the contact interface and deformation of the substrate. In this article, we introduce the Material Point Method (MPM) based numerical tool to study friction during ploughing of a soft-smooth metallic sheet by a rigid-spherical asperity. The numerical model incorporates a dislocation based physical model for substrate material deformation and interfacial shear strength at the asperity- substrate contact. Initially, the numerical output has been validated using results obtained from the analytical models available in the literature for single-asperity sliding. Finally, the depth of the ploughed wear profile and the overall coefficient of friction obtained from the numerical simulations has been compared with the data obtained from the ploughing experiments and are shown to be in good agreement. Hence, the developed MPM model can be established as a robust tool to model ploughing in a single-asperity sliding contact.

    Original languageEnglish
    Pages (from-to)180-190
    Number of pages11
    JournalWear
    Volume418-419
    Early online date27 Nov 2018
    DOIs
    Publication statusPublished - 15 Jan 2019

    Keywords

    • Asperity sliding
    • Boundary layer
    • Friction model
    • Material point method
    • Ploughing

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