Research Article
Numerical Simulation of Particle Breakage of Granular Assemblies in Discrete Element Analyses
Table 1
Parameters of a typical sand grain in DEM.
| | Parameters | Numerical values |
| | Diameter of agglomerate (mm) | 1.0 | | Diameter of elementary ball (mm) | 0.2 | | Density of ball (kg/m3) | 2650 | | Effective modulus of wall (N/m2) | 2.0e8 | | Normal-to-shear stiffness ratio of wall | 1.0 | | Effective modulus of ball (N/m2) | 4.0e8 | | Normal-to-shear stiffness ratio of ball | 1.0 | | Parallel bond effective modulus (N/m2) | 4.0e8 | | Parallel bond normal-to-shear stiffness ratio | 1.0 | | Mean value of parallel bond tensile strength (N/m2) | 2.3e7 | | Mean value of parallel bond cohesion (N/m2) | 0.7e7 | | Friction coefficient μ of ball | 0.4 | | Friction coefficient between ball and wall | 0 |
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