Table 4 Micro-parameters of DEM contacts.
From: Anchoring effect of NPR cables under dynamic conditions and its engineering applications
Layers | Detachable linear set | Bonding set | ||||||
|---|---|---|---|---|---|---|---|---|
Effective modulus \({E}^{*}\) (GPa) | Stiffness ratio \({k}_{n}/{k}_{s}\) | Friction angle \({\varnothing}\) (\(^\circ\)) | Effective modulus \({\bar{E}}^{*}\) (GPa) | Stiffness ratio \({\bar{k}}_{n}/{\bar{k}}_{s}\) | Tension strength \({\bar{\sigma}}_{c}\) (MPa) | Cohesion \(\bar{c}\) (MPa) | Friction angle \(\bar{{\varnothing}}\) (\(^\circ\)) | |
Sandstone | 19.16 | 3.5 | 30 | 19.16 | 3.5 | 16.0 | 20.0 | 40 |
Concrete | 4.98 | 3.7 | 15 | 4.98 | 3.7 | 3.0 | 10.0 | 30 |
