Constitutive relations of dense granulates with friction and adhesion from DEM

Stefan Luding, E. Oñate (Editor), D.R.J Owen (Editor)

Research output: Contribution to conferencePaperAcademic

19 Downloads (Pure)

Abstract

Granular materials in a split-bottom ring shear cell geometry show wide shear bands under slow, quasi-static deformation. From discrete element simulations (DEM), continuum fields like the deformation gradient and stress can be computed with the goal to formulate objective constitutive relations for the flow behavior. From a single simulation only, by applying time- and (local) space-averaging, yield loci can be obtained: linear for noncohesive granular materials and non-linear with peculiar pressure dependence for adhesive powders.
Original languageUndefined
Number of pages4
Publication statusPublished - 2009
EventInternational Conference on Particle-Based Methods - Fundamentals and Applications, PARTICLES 2009 - Barcelona, Spain
Duration: 25 Nov 200927 Nov 2009

Conference

ConferenceInternational Conference on Particle-Based Methods - Fundamentals and Applications, PARTICLES 2009
Abbreviated titlePARTICLES
CountrySpain
CityBarcelona
Period25/11/0927/11/09

Keywords

  • IR-80353
  • DEM
  • split bottom ring-shear cell
  • constitutive models for cohesive powders

Cite this

Luding, S., Oñate, E. (Ed.), & Owen, D. R. J. (Ed.) (2009). Constitutive relations of dense granulates with friction and adhesion from DEM. Paper presented at International Conference on Particle-Based Methods - Fundamentals and Applications, PARTICLES 2009, Barcelona, Spain.
Luding, Stefan ; Oñate, E. (Editor) ; Owen, D.R.J (Editor). / Constitutive relations of dense granulates with friction and adhesion from DEM. Paper presented at International Conference on Particle-Based Methods - Fundamentals and Applications, PARTICLES 2009, Barcelona, Spain.4 p.
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abstract = "Granular materials in a split-bottom ring shear cell geometry show wide shear bands under slow, quasi-static deformation. From discrete element simulations (DEM), continuum fields like the deformation gradient and stress can be computed with the goal to formulate objective constitutive relations for the flow behavior. From a single simulation only, by applying time- and (local) space-averaging, yield loci can be obtained: linear for noncohesive granular materials and non-linear with peculiar pressure dependence for adhesive powders.",
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Luding, S, Oñate, E (ed.) & Owen, DRJ (ed.) 2009, 'Constitutive relations of dense granulates with friction and adhesion from DEM' Paper presented at International Conference on Particle-Based Methods - Fundamentals and Applications, PARTICLES 2009, Barcelona, Spain, 25/11/09 - 27/11/09, .

Constitutive relations of dense granulates with friction and adhesion from DEM. / Luding, Stefan; Oñate, E. (Editor); Owen, D.R.J (Editor).

2009. Paper presented at International Conference on Particle-Based Methods - Fundamentals and Applications, PARTICLES 2009, Barcelona, Spain.

Research output: Contribution to conferencePaperAcademic

TY - CONF

T1 - Constitutive relations of dense granulates with friction and adhesion from DEM

AU - Luding, Stefan

A2 - Oñate, E.

A2 - Owen, D.R.J

PY - 2009

Y1 - 2009

N2 - Granular materials in a split-bottom ring shear cell geometry show wide shear bands under slow, quasi-static deformation. From discrete element simulations (DEM), continuum fields like the deformation gradient and stress can be computed with the goal to formulate objective constitutive relations for the flow behavior. From a single simulation only, by applying time- and (local) space-averaging, yield loci can be obtained: linear for noncohesive granular materials and non-linear with peculiar pressure dependence for adhesive powders.

AB - Granular materials in a split-bottom ring shear cell geometry show wide shear bands under slow, quasi-static deformation. From discrete element simulations (DEM), continuum fields like the deformation gradient and stress can be computed with the goal to formulate objective constitutive relations for the flow behavior. From a single simulation only, by applying time- and (local) space-averaging, yield loci can be obtained: linear for noncohesive granular materials and non-linear with peculiar pressure dependence for adhesive powders.

KW - IR-80353

KW - DEM

KW - split bottom ring-shear cell

KW - constitutive models for cohesive powders

M3 - Paper

ER -

Luding S, Oñate E, (ed.), Owen DRJ, (ed.). Constitutive relations of dense granulates with friction and adhesion from DEM. 2009. Paper presented at International Conference on Particle-Based Methods - Fundamentals and Applications, PARTICLES 2009, Barcelona, Spain.