Research Article
Discrete Element Simulation of Conical Pick’s Coal Cutting Process under Different Cutting Parameters
Table 5
Micro mechanical parameters of coal particles.
| Micro mechanical parameters of coal particles | Normal stiffness [N·m−1] | Shear stiffness [N·m−1] | Critical normal stress [pa] | Critical shear stress [pa] |
| Value | | | | |
|
|