17 citations · 22 across the 4 of their papers we have counts for
4 papers
Modeling slow deformation of polygonal particles using DEM
Andres A. Pena, Pedro G. Lind, Hans J. Herrmann
We introduce two improvements in the numerical scheme to simulate collision and slow shearing of irregular particles. First, we propose an alternative approach based on simple rela…
Numerical Improvement of the Discrete Element Method applied to Shear of Granular Media
Andrés A. Peña, Pedro G. Lind, Sean McNamara +1
We present a detailed analysis of the bounds on the integration step in Discrete Element Method (DEM) for simulating collisions and shearing of granular assemblies. We show that, i…
Microscopic origin of granular ratcheting
S. McNamara, R. García-Rojo, H. J. Herrmann
Numerical simulations of assemblies of grains under cyclic loading exhibit ``granular ratcheting'': a small net deformation occurs with each cycle, leading to a linear accumulation…
Shakedown of unbound granular material
R. García-Rojo, H. J. Herrmann
Compacted unbound granular materials are extensively used as sub-layer in pavement design. Most pavement design guides assume that they are responsible for the degradation and defo…