Constitutive relations of dense granulates with friction and adhesion from DEM

Stefan Luding; E. Oñate; D.R.J Owen

Constitutive relations of dense granulates with friction and adhesion from DEM

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

Faculty of Engineering Technology

Research output: Contribution to conference › Paper

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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.

Original language	Undefined
Number of pages	4
Publication status	Published - 2009
Event	1st International Conference on Particle-Based Methods, PARTICLES 2009 - Barcelona, Spain Duration: 25 Nov 2009 → 27 Nov 2009 Conference number: 1

Conference

Conference	1st International Conference on Particle-Based Methods, PARTICLES 2009
Abbreviated title	PARTICLES
Country/Territory	Spain
City	Barcelona
Period	25/11/09 → 27/11/09

Keywords

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

Access to Document

Luding09constitutive

Cite this

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title = "Constitutive relations of dense granulates with friction and adhesion from DEM",

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.",

keywords = "IR-80353, DEM, split bottom ring-shear cell, constitutive models for cohesive powders",

author = "Stefan Luding and E. O{\~n}ate and D.R.J Owen",

year = "2009",

language = "Undefined",

note = "1st International Conference on Particle-Based Methods, PARTICLES 2009 ; Conference date: 25-11-2009 Through 27-11-2009",

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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

N1 - Conference code: 1

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

T2 - 1st International Conference on Particle-Based Methods, PARTICLES 2009

Y2 - 25 November 2009 through 27 November 2009

ER -