Granular materials composed of shape-anisotropic grains

T Börzsönyi, R Stannarius - Soft Matter, 2013 - pubs.rsc.org
Granular physics has made considerable progress during the past decades in the
understanding of static and dynamic properties of large ensembles of interacting …

Additive rheology of complex granular flows

TT Vo, S Nezamabadi, P Mutabaruka… - Nature …, 2020 - nature.com
Granular flows are omnipresent in nature and industrial processes, but their rheological
properties such as apparent friction and packing fraction are still elusive when inertial …

Packings of irregular polyhedral particles: Strength, structure, and effects of angularity

E Azéma, F Radjai, F Dubois - Physical Review E—Statistical, Nonlinear, and …, 2013 - APS
We present a systematic numerical investigation of the shear strength and structure of
granular packings composed of irregular polyhedral particles. The angularity of the particles …

Effects of particle asphericity on the macro-and micro-mechanical behaviors of granular assemblies

S Zhao, X Zhou - Granular Matter, 2017 - Springer
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 …

Effects of shape and size polydispersity on strength properties of granular materials

DH Nguyen, E Azéma, P Sornay, F Radjai - Physical Review E, 2015 - APS
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 …

Rheology and structure of polydisperse three-dimensional packings of spheres

D Cantor, E Azéma, P Sornay, F Radjai - Physical Review E, 2018 - APS
We use three-dimensional contact dynamics simulations to analyze the rheology of
polydisperse packings of spherical particles subjected to simple shear. The macroscopic …

Investigating the incremental behavior of granular materials with the level-set discrete element method

K Karapiperis, J Harmon, E Andò, G Viggiani… - Journal of the …, 2020 - Elsevier
A computational framework is presented for high-fidelity virtual (in silico) experiments on
granular materials. By building on i) accurate mathematical representation of particle …

Effect of size polydispersity versus particle shape in dense granular media

DH Nguyen, É Azéma, F Radjai, P Sornay - Physical Review E, 2014 - APS
We present a detailed analysis of the morphology of granular systems composed of
frictionless pentagonal particles by varying systematically both the size span and particle …

Controlling active self-assembly through broken particle-shape symmetry

HH Wensink, V Kantsler, RE Goldstein, J Dunkel - Physical Review E, 2014 - APS
Many structural properties of conventional passive materials are known to arise from the
symmetries of their microscopic constituents. By contrast, it is largely unclear how the …

Shear strength and microstructure of polydisperse packings: The effect of size span and shape of particle size distribution

E Azéma, S Linero, N Estrada, A Lizcano - Physical Review E, 2017 - APS
By means of extensive contact dynamics simulations, we analyzed the effect of particle size
distribution (PSD) on the strength and microstructure of sheared granular materials …