Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 259-271 |
| Seitenumfang | 13 |
| Fachzeitschrift | Finite Elements in Analysis and Design |
| Jahrgang | 44 |
| Ausgabenummer | 5 |
| Publikationsstatus | Veröffentlicht - 4 März 2008 |
Abstract
In this paper a three-dimensional discrete element method (DEM) is used to model cohesionless granular materials. Two different microscopic constitutive equations are used to resolve the contacts between single particles in the DEM: First, a simple penalty type contact law and second, a more sophisticated Hertzian type contact law. Numerical tests in form of DEM simulations of a cuboid particle sample under compression and shearing are performed using both microscopic constitutive equations. The microscopic results of the DEM in terms of inter-particle contact forces and particle trajectories are transferred to macroscopic results in terms of stresses and strains by a homogenization approach. The macroscopic results are presented and compared for the different microscopic constitutive equations.
ASJC Scopus Sachgebiete
- Mathematik (insg.)
- Analysis
- Ingenieurwesen (insg.)
- Allgemeiner Maschinenbau
- Informatik (insg.)
- Computergrafik und computergestütztes Design
- Mathematik (insg.)
- Angewandte Mathematik
Zitieren
- Standard
- Harvard
- Apa
- Vancouver
- BibTex
- RIS
in: Finite Elements in Analysis and Design, Jahrgang 44, Nr. 5, 04.03.2008, S. 259-271.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Comparison of the macroscopic behavior of granular materials modeled by different constitutive equations on the microscale
AU - Wellmann, Christian
AU - Lillie, Claudia
AU - Wriggers, Peter
PY - 2008/3/4
Y1 - 2008/3/4
N2 - In this paper a three-dimensional discrete element method (DEM) is used to model cohesionless granular materials. Two different microscopic constitutive equations are used to resolve the contacts between single particles in the DEM: First, a simple penalty type contact law and second, a more sophisticated Hertzian type contact law. Numerical tests in form of DEM simulations of a cuboid particle sample under compression and shearing are performed using both microscopic constitutive equations. The microscopic results of the DEM in terms of inter-particle contact forces and particle trajectories are transferred to macroscopic results in terms of stresses and strains by a homogenization approach. The macroscopic results are presented and compared for the different microscopic constitutive equations.
AB - In this paper a three-dimensional discrete element method (DEM) is used to model cohesionless granular materials. Two different microscopic constitutive equations are used to resolve the contacts between single particles in the DEM: First, a simple penalty type contact law and second, a more sophisticated Hertzian type contact law. Numerical tests in form of DEM simulations of a cuboid particle sample under compression and shearing are performed using both microscopic constitutive equations. The microscopic results of the DEM in terms of inter-particle contact forces and particle trajectories are transferred to macroscopic results in terms of stresses and strains by a homogenization approach. The macroscopic results are presented and compared for the different microscopic constitutive equations.
KW - Discrete element method
KW - Granular material
KW - Hertzian contact
KW - Homogenization
UR - http://www.scopus.com/inward/record.url?scp=40249093036&partnerID=8YFLogxK
U2 - 10.1016/j.finel.2007.11.007
DO - 10.1016/j.finel.2007.11.007
M3 - Article
AN - SCOPUS:40249093036
VL - 44
SP - 259
EP - 271
JO - Finite Elements in Analysis and Design
JF - Finite Elements in Analysis and Design
SN - 0168-874X
IS - 5
ER -