Element test experiments and simulations: From dry towards cohesive powders

Olukayode Isaiah Imole, Nishant Kumar, Stefan Luding

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Findings from experiments and particle simulations for dry and cohesive granular materials are presented with the goal to reach quantitative agreement between simulations and experiments. Results for the compressibility, tested with the FT4 Powder Rheometer are presented. The first simulation results involve the strain controlled uniaxial compression of frictionless polydisperse spheres in a biaxial box using a linear visco-elastic contact model. As main result, the evolution of pressure as a function of volume fraction is reported. Our anisotropic, uniaxial findings compare astonishingly well with results for purely isotropic compression. Concerning the second stress response, namely anisotropy, we present the evolution of the deviatoric stress as a function of the volume fraction, which cannot be measured with the FT4 experiment, but requires a bi-axial experiment.
Original languageEnglish
Title of host publicationFundamentals and Applications
EditorsE Onate, D.R.J Owen
Place of PublicationBarcelona
Number of pages10
ISBN (Print)978-84-89925-69-4
Publication statusPublished - 26 Oct 2011
Event2nd International Conference on Particle-based Methods, PARTICLES 2011 - Barcelona, Spain
Duration: 26 Oct 201128 Oct 2011
Conference number: 2

Publication series



Conference2nd International Conference on Particle-based Methods, PARTICLES 2011
Abbreviated titlePARTICLES
Internet address


  • METIS-284496
  • IR-80384
  • Uniaxial Compression
  • Cohesive Powders
  • DEM
  • deviatoric stress
  • Contact Models
  • Element tests

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