A Study of the Wave Propagation Velocity in Granular Soils Using Discrete Element Method (DEM)

Authors

1 PhD Student, Civil and Environmental Engineering Faculty, Amirkabir University of Technology, Tehran, Iran

2 Professor of Civil and Environmental Engineering Faculty, Amirkabir University of Technology, Tehran, Iran

Abstract

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 transferred to particles. Simulations results are well consistent with the results of experiments conducted by other researchers. In addition, the results obtained are shown as graphs to study the effectiveness of each parameter. According to the results, the coefficient of friction and normal stiffness have a greater effect on the wave velocity.

Keywords