Element test experiments and simulations: From dry towards cohesive powders

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Abstract

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
PublisherCIMNE
Pages1-10
Number of pages10
ISBN (Print)978-84-89925-69-4
Publication statusPublished - 26 Oct 2011
EventII International Conference on Particle-based Methods - Fundamentals and Applications, PARTICLES 2011 - Barcelona, Spain
Duration: 26 Oct 201128 Oct 2011
Conference number: 2
http://congress.cimne.com/particles2011/frontal/default.asp

Publication series

Name
PublisherEccomas

Conference

ConferenceII International Conference on Particle-based Methods - Fundamentals and Applications, PARTICLES 2011
Abbreviated titlePARTICLES
CountrySpain
CityBarcelona
Period26/10/1128/10/11
Internet address

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Keywords

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

Cite this

Imole, O. I., Kumar, N., & Luding, S. (2011). Element test experiments and simulations: From dry towards cohesive powders. In E. Onate, & D. R. J. Owen (Eds.), Fundamentals and Applications (pp. 1-10). Barcelona: CIMNE.