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Document type:
Zeitschriftenaufsatz 
Author(s):
Peña, Andrés A.; Lind, Pedro G.; Herrmann, Hans J. 
Title:
Modeling slow deformation of polygonal particles using DEM 
Abstract:
We introduce two improvements in the numerical scheme to simulate collision and slow shearing of irregular particles. First, we propose an alternative approach based on simple relations to compute the frictional contact forces. The approach improves efficiency and accuracy of the Discrete Element Method (DEM) when modeling the dynamics of the granular packing. We determine the proper upper limit for the integration step in the standard numerical scheme using a wide range of material parameters....    »
 
Keywords:
Granular media, Discrete element method, Slow deformation, Contact forces 
Journal title:
Particuology 
Year:
2008 
Journal volume:
Journal issue:
Pages contribution:
506-514 
Print-ISSN:
1674-2001 
Notes:
Simulation and Modeling of Particulate Systems