Table 2 Parameters required for discrete element simulation.
From: Modeling of sand-cultivated substrate for Gobi facility agriculture and validation of trenching test
Parameter symbol | Parameter | Parameter level | ||
|---|---|---|---|---|
− 1 | 0 | 1 | ||
T1 | Poisson’s ratio for river sand | 0.2 | 0.3 | 0.4 |
T2 | Shear modulus of river sand (MPa) | 9.5 | 10.5 | 11.5 |
T3 | River sand density | 1250 | 1300 | 1350 |
T4 | Recovery factor between river sand | 0.15 | 0.45 | 0.75 |
T5 | The static friction coefficient between river sand | 0.2 | 0.6 | 1 |
T6 | The rolling friction coefficient between river sand | 0.1 | 0.25 | 0.4 |
T7 | The collision recovery factor between river sand and steel | 0.2 | 0.5 | 0.8 |
T8 | The static friction coefficient between river sand and steel | 0.3 | 0.6 | 0.9 |
T9 | The rolling friction coefficient between river sand and steel | 0.1 | 0.3 | 0.5 |
