Three-Dimensional Discrete Element Simulation of Ballast Direct Shear Testing in Vibration Field

2020 ◽  
Vol 39 (1) ◽  
pp. 157-169
Author(s):  
Junhua Xiao ◽  
Xiao Zhang ◽  
De Zhang ◽  
Xueyu Geng ◽  
Yanhai Wang
Keyword(s):  
Three Dimensional ◽  
Discrete Element ◽  
Direct Shear ◽  
Discrete Element Simulation ◽  
Shear Testing ◽  
Vibration Field ◽  
Element Simulation ◽  
Direct Shear Testing

Three-Dimensional Discrete Element Simulations of Round Hopper in Thermal Power Plant

2012 ◽  
Vol 157-158 ◽  
pp. 45-48
Author(s):  
Qing He ◽  
Dong Mei Du ◽  
Ye Wang ◽  
Zi Rui He
Keyword(s):  
Lateral Pressure ◽  
Thermal Power ◽  
Three Dimensional ◽  
Vertical Direction ◽  
Discrete Element ◽  
Dynamic Force ◽  
Discrete Element Simulation ◽  
Element Simulation ◽  
Discrete Element Simulations ◽  
Dynamic Discharge

Three-dimensional discrete element process was adopted to simulate the discharge of hopper and the change of flow pattern of particles and dynamic lateral pressure of walls were analyzed in process of discharge. The results showed that three-dimensional discrete element simulation can obtain much more information. Discrete element method can simulate dynamic discharge problems. The dynamic force of vertical direction is much greater than dynamic force of horizontal direction in the process of discharge in the cone section of hopper. When the stored materials in hopper generate arches in the course of discharge, the inertia of floating stored materials will make the pressure of particles above arches hoist, so the walls of hopper may crack.

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