Discrete element simulation of wet granular materials: Plastic compression

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Abstract

We use Discrete Element Method (DEM) simulations in three dimensions (3D) to study the quasistatic response of very loose assemblies of frictional spherical grains to an isotropic compression in the presence of a small amount of an interstitial liquid, which gives rise to capillary menisci and attractive forces. Previous results obtained in 2D [8] are generalized to systems that may be observed in the laboratory. We study the influence of the initial assembling process and of various micromechanical parameters on the plastic compression curves, from very loose states assembled at low P∗ to maximally compressed ones in which capillary cohesion is negligible at large P∗. We also show how the plastic response along those compression curves is influenced by rolling resistance in contacts.

Original languageEnglish
Title of host publicationProceedings of the 4th International Conference on Particle-Based Methods - Fundamentals and Applications, PARTICLES 2015
EditorsEugenio Onate, D.R.J. Owen, T. Zohdi, M. Bischoff, P. Wriggers
PublisherInternational Center for Numerical Methods in Engineering
Pages789-800
Number of pages12
ISBN (Electronic)9788494424472
Publication statusPublished - 1 Jan 2015
Event4th International Conference on Particle-Based Methods, PARTICLES 2015 - Barcelona, Spain
Duration: 28 Sept 201530 Sept 2015

Publication series

NameProceedings of the 4th International Conference on Particle-Based Methods - Fundamentals and Applications, PARTICLES 2015

Conference

Conference4th International Conference on Particle-Based Methods, PARTICLES 2015
Country/TerritorySpain
CityBarcelona
Period28/09/1530/09/15

Keywords

  • Capillary force
  • Consolidation
  • DEM
  • Plastic compression

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