Table 3.
Mechanical parameters of contact interface under different stick states
| Model | Normal stiffness (GPa m−1) | Tangential stiffness (GPa m−1) | Cohesion (MPa) | Friction angle (°) |
|---|---|---|---|---|
| R–Cs–M | 50 | 50 | 2 | 40 |
| R–Cw–M | 10 | 10 | 1 | 40 |
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