Table 2 Mechanical properties of DEM model.
From: Micro-mechanical insights into the dynamics of crack propagation in snow fracture experiments
Mechanical property | Macroscopic | Particles |
|---|---|---|
Poisson’s ratio \({\upsilon }_{u}\) | − | 0.3 |
Restitution coefficient \({e}_{u}\) | − | 0.1 |
Friction coefficient \({\mu }_{u}\) | − | 0.5 |
Mean weak layer density (kg m−3) | 130 | 650 |
Mean slab layer density (kg m−3) | 154 | 280 |
Slab porosity | 45% | − |
Weak layer porosity | 80% | − |
*Slab elastic modulus (MPa) | 5.2 | 7 |
*Weak layer elastic modulus (MPa) | 1 | 47.5 |
*Slab tensile strength (kPa) | Infinite | Infinite |
*Weak layer tensile strength (kPa) | 2 | 144 |
*Weak layer shear strength (kPa) | 1.2 | 144 |
*Weak layer compressive strength (kPa) | 4.3 | − |
