Research Article
Discrete Simulation of Vibratory Roller Compaction of Field Rockfills
Table 6
Microproperties of PBM contacts between subparticles.
| | meso parameters | Value | | Contact model | Linear parallel bond model |
| | Linear part | Normal stiffness/(N/m) | 1.0 × 109 | | Shear stiffness/(N/m) | 1.0 × 109 | | Local friction | 0.50 |
| | Dashpot part | Normal critical damping ratio | 0.20 | | Shear critical damping ratio | 0.00 | | Dashpot mode | 3 |
| | Bond part | Normal stiffness/(Pa/m) | 1.0 × 109/(2Rc) | | Shear stiffness/(Pa/m) | 1.0 × 109/(2Rc) | | Tensile strength/(MPa) | 2.0 | | Shear strength/(MPa) | 2.0 |
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where Rc is the size of the bond of PBM contact.
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