109 citations · 364 across the 17 of their papers we have counts for
17 papers
Simulation-Guided Optimization of Granular Phononic Crystal Structure Using the Discrete Element Method
Igor Ostanin, Hongyang Cheng, Vanessa Magnanimo
The paper describes a novel methodology of designing granular phononic crystals for acoustic wave manipulations. A discrete element method is utilized to model the dynamics of a pu…
Collapse modes in SC and BCC arrangements of elastic beads
Igor A. Ostanin, Artem R. Oganov, Vanessa Magnanimo
Collapse modes in compressed simple cubic (SC) and body-centered cubic (BCC) periodic arrangements of elastic frictionless beads were studied numerically using the discrete element…
Hydro-micromechanical modeling of wave propagation in saturated granular media
Hongyang Cheng, Stefan Luding, Nicolás Rivas +2
Biot's theory predicts the wave velocities of a saturated poroelastic granular medium from the elastic properties, density and geometry of its dry solid matrix and the pore fluid,…
Elastic wave propagation in dry granular media: effects of probing characteristics and stress history
Hongyang Cheng, Stefan Luding, Kuniyasu Saitoh +1
Elastic wave propagation provides a noninvasive way to probe granular materials. The discrete element method using particle configuration as input, allows a micromechanical interpr…
Wet granular flow control through liquid induced cohesion
Ahmed Jarray, Vanessa Magnanimo, Stefan Luding
Liquid has a significant effect on the flow of wet granular assemblies. We explore the effects of liquid induced cohesion on the flow characteristics of wet granular materials. We…
A master equation for force distributions in soft particle packings - Irreversible mechanical responses to isotropic compression and decompression
Kuniyasu Saitoh, Vanessa Magnanimo, Stefan Luding
Mechanical responses of soft particle packings to quasi-static deformations are determined by the microscopic restructuring of force-chain networks, where complex non-affine displa…
Macroscopic model with anisotropy based on micro-macro informations
Nishant Kumar, Stefan Luding, Vanessa Magnanimo
Physical experiments can characterize the elastic response of granular materials in terms of macroscopic state-variables, namely volume (packing) fraction and stress, while the mic…
Tuning the bulk properties of bidisperse granular mixtures by small amount of fines
Nishant Kumar, Vanessa Magnanimo, Marco Ramaioli +1
We study the bulk properties of isotropic bidisperse granular mixtures using discrete element simulations. The focus is on the influence of the size (radius) ratio of the two const…
A Master equation for force distributions in polydisperse frictional particles
Kuniyasu Saitoh, Vanessa Magnanimo, Stefan Luding
An incremental evolution equation, i.e. a Master equation in statistical mechanics, is introduced for force distributions in polydisperse frictional particle packings. As basic ing…
A contact model for sticking of adhesive meso-particles
Abhinendra Singh, Vanessa Magnanimo, Stefan Luding
The interaction between visco-elasto-plastic and adhesive particles is the subject of this study, where "meso-particles" are introduced, i.e., simplified particles, whose contact m…
Role of gravity or confining pressure and contact stiffness in granular rheology
Abhinendra Singh, Vanessa Magnanimo, Kuniyasu Saitoh +1
The steady shear rheology of granular materials is investigated in slow quasi-static states and inertial flows. The effect of the gravity field and contact stiffness, which are con…
Experiments and Discrete Element Simulation of the Dosing of Cohesive Powders in a Simplified Geometry
Olukayode I. Imole, Dinant Krijgsman, Thomas Weinhart +4
We perform experiments and discrete element simulations on the dosing of cohesive granular materials in a simplified geometry. The setup is a simplified canister box where the powd…
Slow relaxation behavior of cohesive powders
Olukayode I. Imole, Maria Paulick, Martin Morgeneyer +5
We present findings from uniaxial (oedometric) compression tests on two cohesive industrially relevant granular materials (cocoa and limestone powder). Experimental results are pre…
Effect of cohesion on shear banding in quasi-static granular material
Abhinendra Singh, Vanessa Magnanimo, Kuniyasu Saitoh +1
It is widely recognized in particle technology that adhesive powders show a wide range of different bulk behavior due to the peculiarity of the particle interaction. We use Discret…
Master equation for the probability distribution functions of forces in soft particle packings
Kuniyasu Saitoh, Vanessa Magnanimo, Stefan Luding
Employing molecular dynamics simulations of jammed soft particles, we study microscopic responses of force-chain networks to quasi-static isotropic (de)compressions. We show that n…
Slow Dynamics Near Jamming
Kuniyasu Saitoh, Vanessa Magnanimo, Stefan Luding
Static and dynamic properties of two-dimensional bidisperse dissipative particles are numerically studied near the jamming transition. We investigate the dependency of the critical…
Irreversible Incremental Behavior in a Granular Material
Luigi La Ragione, Vanessa Magnanimo, James T. Jenkins +1
We test the elasticity of granular aggregates using increments of shear and volume strain in a numerical simulation. We find that the increment in volume strain is almost reversibl…