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 |
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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 |
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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