Parameter | Value |
Ball diameter | 15 mm |
Ball density | 7.7 g/cm3 |
Shear modulus | 80 GPa |
Poisson’s ratio | 0.3 |
Coefficient of restitution | 0.35 |
Coefficient of static friction | 0.2 - 0.5 |
Coefficient of rolling friction | 0.05 - 0.5 |
Time step | 10−6 s |
Temperature | 25˚C |
Ball powder ratio | 70:1 |