考虑等效曲率的超二次曲面单元非线性接触模型
1)
王嗣强, 季顺迎
NON-LINEAR CONTACT MODEL FOR SUPER-QUADRIC ELEMENT CONSIDERING THE EQUIVALENT RADIUS OF CURVATURE
1)
Wang Siqiang, Ji Shunying
表1
圆柱体静态堆积的主要离散元模拟参数
Table 1
DEM parameters for static packing of cylinders
Definition
Value
volume/m
3
2.558 x 10
7
Density/kg . m_
3
)
1208
mass/kg
3.1 x 10
4
shear modulus/GPa
1.15
Poisson’s ratio
0.35
normal damping coefficient
0.15
sliding friction coefficient
0.5
time step/s
2 x 10
6