Abstract
| Original language | English |
|---|---|
| Title of host publication | World Congress Particle Technology 6 |
| Editors | Nuernberg mess GmbH |
| Place of Publication | Nuremberg |
| Publisher | Nuernberg mess GmbH |
| Pages | 1-4 |
| Number of pages | 4 |
| ISBN (Print) | 978-3-00-030570-2 |
| Publication status | Published - 26 Apr 2010 |
| Event | 6th World Congress on Particle Technology, WCPT 2010 - Nuremberg, Germany Duration: 26 Apr 2010 → 29 Apr 2010 Conference number: 6 |
Publication series
| Name | |
|---|---|
| Publisher | Nürnberg Messe GmbH |
Conference
| Conference | 6th World Congress on Particle Technology, WCPT 2010 |
|---|---|
| Abbreviated title | WCPT 2010 |
| Country | Germany |
| City | Nuremberg |
| Period | 26/04/10 → 29/04/10 |
Fingerprint
Keywords
- IR-80360
- METIS-271535
Cite this
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From ``soft'' particle simulations to macroscopic constitutive relations. / Göncü, F.; Luding, Stefan.
World Congress Particle Technology 6. ed. / Nuernberg mess GmbH. Nuremberg : Nuernberg mess GmbH, 2010. p. 1-4.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic
TY - GEN
T1 - From ``soft'' particle simulations to macroscopic constitutive relations
AU - Göncü, F.
AU - Luding, Stefan
PY - 2010/4/26
Y1 - 2010/4/26
N2 - The goal is to determine the constitutive behavior of granular packings under various deformations (isotropic and anisotropic) from particle simulations. For this we consider deformations, stress, structure and the contact forces as the basis. In a previous study [6,7] we investigated using DEM, the evolution of the coordination number (and the packing structure) and pressure as functions of the volume fraction for a polydisperse granular packing of spheres under isotropic compression. Here we focus on anisotropic deformation by implementing the triaxial test setup in a similar way. We study the effect of polydispersity changing the width of the particle size distribution. We find that an increase in polydispersity leads to a decrease in pressure at constant volume fraction whereas the macroscopic friction angle seems to increase with polydispersity. Furthermore, we performed triaxial test simulations with soft friction which is characterized by a small tangential contact stiffness. Our main observation is that using the same initial packing configuration with different friction coefficients does not lead to an obvious trend in simulation results.
AB - The goal is to determine the constitutive behavior of granular packings under various deformations (isotropic and anisotropic) from particle simulations. For this we consider deformations, stress, structure and the contact forces as the basis. In a previous study [6,7] we investigated using DEM, the evolution of the coordination number (and the packing structure) and pressure as functions of the volume fraction for a polydisperse granular packing of spheres under isotropic compression. Here we focus on anisotropic deformation by implementing the triaxial test setup in a similar way. We study the effect of polydispersity changing the width of the particle size distribution. We find that an increase in polydispersity leads to a decrease in pressure at constant volume fraction whereas the macroscopic friction angle seems to increase with polydispersity. Furthermore, we performed triaxial test simulations with soft friction which is characterized by a small tangential contact stiffness. Our main observation is that using the same initial packing configuration with different friction coefficients does not lead to an obvious trend in simulation results.
KW - IR-80360
KW - METIS-271535
M3 - Conference contribution
SN - 978-3-00-030570-2
SP - 1
EP - 4
BT - World Congress Particle Technology 6
A2 - Nuernberg mess GmbH, null
PB - Nuernberg mess GmbH
CY - Nuremberg
ER -