Research Article
Improved Boundary Conditions for a 3D DEM Simple Shear Model
Table 1
Summary of contact model parameters.
| | Young’s modulus (Pa) | Stiffness ratio | Friction coefficient | Rolling resistance coefficient |
| Ball-ball | | 1 | 0.6 | 0.2 | Ball-pebble | | 1 | 0.1 | 0.1 | Ball-facet | | 1 | 0.9 | 0.2 |
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