Pin-on-Disc Modelling with Mesh Deformation Using Discrete Element Method

Y. Yan*, R.L.J. Helmons, D.L. Schott

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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The pin-on-disc test is a standard sliding wear test used to analyse sliding properties, including wear contour and wear volume. In this study, long-term laboratory test performance is compared with a short-term numerical model. A discrete element method (DEM) approach combined with an Archard wear model and a deformable geometry technique is used. The effect of mesh size on wear results is evaluated, and a scaling factor is defined to relate the number of revolutions between the experiment and the numerical model. The simulation results indicate that the mesh size of the disc has a significant effect on the wear contour. The wear depth and wear width follow a normal distribution after experiencing a run-in phase, while the wear volume has a quadratic relation with the number of revolutions. For the studied material combination, the calibration of the wear coefficient shows that the wear volume of the pin-on-disc test accurately matches the simulation results for a minimum of eight revolutions with a wear coefficient lower than 2 × 10−11 Pa−1
Original languageEnglish
Article number1813
Number of pages17
Issue number5
Publication statusPublished - 2022


  • sliding wear
  • mesh deformation
  • calibration of wear coefficient
  • scaling factor


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