2D Image-based calibration of rolling resistance in 3D discrete element models of sand

Marcos Arroyo (Lead / Corresponding author), Riccardo Rorato, Marco Previtali, Matteo Ciantia

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Abstract

Contact rolling resistance is the most widely used method to incorporate particle shape effects in the discrete element method (DEM). The main reason for this is that such approach allows for using spherical particles hence offering substantial computational benefits compared to non-spherical DEM models. This paper shows how rolling resistance parameters for 3D DEM models can be easily calibrated with 2D sand grain images.
Original languageEnglish
Title of host publicationProceedings of the 18th UK Travelling Workshop
Subtitle of host publicationGeoMechanics: from Micro to Macro (GM3), Dundee, 2021
EditorsMatteo Ciantia, Marco Previtali, Malcolm Bolton
Place of PublicationDundee
PublisherUniversity of Dundee
Pages13-16
Number of pages4
DOIs
Publication statusPublished - 16 Dec 2021

Publication series

NameGM3 Travelling Workshop Proceedings
Number1

Keywords

  • rolling resistance
  • DEM
  • Image analyses
  • Particle Shape
  • Calibration

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