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 CURVATURE1)

Wang Siqiang, Ji Shunying

表2 椭球体动态卸料的主要计算参数

Table 2 Major computational parameters of dynamic discharge of ellipsoids

Definition Value particle density/(kg • m3) 1338 Young’s modulus/GPa 1.0 Poisson’s ratio 0.29 normal damping coefficient 0.3 tangential damping coefficient 0.3 sliding friction coefficient 0.4 time step/s 5 x 106