Granular materials are the most recurrent form of solid-state matter on Earth. They challenge
researchers and engineers in various fields not only because they occur with a broad variety …

This report explores the effects of particle shape and content of fines on the shear behavior
of sand-fines mixtures using a two-dimensional discrete element method. The contributions …

The rolling resistance model has been employed in the discrete element modelling in
geomechanics, as an alternative computationally efficient approach to capture the …

We present measurements of the stress response of packings formed from a wide range of
particle shapes. Besides spheres these include convex shapes such as the Platonic solids …

Particle shape has been regarded as a key factor affecting mechanical behaviors of granular
assemblies. The present work proposes a shape descriptor, ie, asphericity, to isolate the …

This report investigated the effects of irregular particles on macroscopic and microscopic
behaviour under triaxial compression tests for a range of various roundnesses. A multi …

The mechanical behaviors of granular soils at different initial densities and confining
pressures in the drained and undrained triaxial tests are investigated micromechanically by …

The multi-scale characteristics of particle morphology, including the overall form, local
roundness and surface roughness, affect the critical state behavior of sands and should be …

By means of extensive contact dynamics simulations, we analyze the combined effects of
polydispersity both in particle size and in particle shape, defined as the degree of shape …

We present a systematic numerical investigation concerning the combined effects of sliding
friction and particle shape (ie, angularity) parameters on the shear strength and …