Discrete Element Method (DEM) is extensively used for mathematical modeling and simulating the behavior of discrete discs and discrete spheres in two and three dimensional space, respectively. Prediction of particles flow regime, power draw and kinetic energy for a laboratory or an industrial mill is possible by DEM simulation. In this article, a new approach was used to assess the main paramet...

In the present paper, discrete element method (DEM) is used to study wave propagation phenomenon in granular soils. The effect of factors such as coefficient of friction, frequency, normal stiffness and soil gradation on the wave velocity is studied. Using the wall motion based on the sinusoidal function is the method of loading used in this simulation, through which the pressure wave is transf...

Objective The construction method of the discrete element model and setting simulation parameters in strip- blade-shaped sugarcane leaf are unclear. model’s accuracy greatly influences dynamic response characteristics between particles, it is necessary to improve through parameter calibration. Method optimized calibrated based on surface methodology (RSM) with physical angle repose as value. Fi...

The discrete element method (DEM) was used to establish the slump model and J-Ring of concrete describe flow behavior in test test. Then, contact parameters particle-particle particle-geometry for DEM model, including restitution coefficient, rolling friction static surface energy, were measured. In order avoid influence shape size aggregate, this paper high-precision glass spheres as aggregate...