Research Article
Effect of Material Properties and Strain Rate on Fragmentation of Anisotropic Rock
Table 3
Microscopic properties of particles and bonds of the sample.
| | Properties | Material parameters’ value |
| | Particles | | | Ball density (kg/m3) | 2620 | | Minimum ball radius (m) | 0.2e − 3 | | Maximum ball radius (m) | 0.332e − 3 | | Young’s modulus (, Pa) | 16.4e9 | | Stiffness ratio () | 1.15 | | Parallel bond model | | | Young’s modulus (, Pa) | 16.4e9 | | Stiffness ratio | 1.15 | | Normal strength (, Pa) | 52e6 ± 13e6 | | Shear strength (pb_, Pa) | 140e6 ± 35e6 | | Smooth joint model | | | Normal stiffness ( (Pa/m)) | 15.73e12 | | Shear stiffness ( (Pa/m)) | 6.38e12 | | Friction coefficient (φ) | 35° | | Cohesion (sj_, Pa) | 36e6 ± 3e6 | | Tensile strength (, Pa) | 3e6 ± 0.5e6 |
|
|
