Statistics of intermittent granular flow from confined tabletop experiments
A Petri - La Rivista del Nuovo Cimento, 2024 - Springer
It is often said that “granular matter is ubiquitous”. Many natural components and human
products look and behave like grains: stones, debris, soils, on the one hand; food …
products look and behave like grains: stones, debris, soils, on the one hand; food …
Collaborative behavior of intruders moving amid grains
We investigate the motion of groups of intruders in a two-dimensional granular system by
using discrete numerical simulations. By imposing either a constant velocity or a thrusting …
using discrete numerical simulations. By imposing either a constant velocity or a thrusting …
Evolution of force networks during stick-slip motion of an intruder in a granular material: Topological measures extracted from experimental data
In quasi-two-dimensional experiments with photoelastic particles confined to an annular
region, an intruder constrained to move in a circular path halfway between the annular walls …
region, an intruder constrained to move in a circular path halfway between the annular walls …
Intruder in a two-dimensional granular system: Effects of dynamic and static basal friction on stick-slip and clogging dynamics
We present simulation results for an intruder pulled through a two-dimensional granular
system by a spring using a model designed to mimic the experiments described by …
system by a spring using a model designed to mimic the experiments described by …
Strain localization and failure of disordered particle rafts with tunable ductility during tensile deformation
Quasi-static tensile experiments were performed for a model disordered solid consisting of a
two-dimensional raft of polydisperse floating granular particles with capillary attractions. The …
two-dimensional raft of polydisperse floating granular particles with capillary attractions. The …
Mixing particle softness in a two-dimensional hopper: Particle rigidity and friction enable variable arch geometry to cause clogging
Understanding the clogging of mixtures of soft and rigid particles flowing through hoppers
becomes important as soft particle usage increases in consumer products. We investigate …
becomes important as soft particle usage increases in consumer products. We investigate …
Stress propagation in locally loaded packings of disks and pentagons
The mechanical strength and flow of granular materials can depend strongly on the shapes
of individual grains. We report quantitative results obtained from photoelasticimetry …
of individual grains. We report quantitative results obtained from photoelasticimetry …
On intermittency in sheared granular systems
We consider a system of granular particles, modeled by two dimensional frictional soft
elastic disks, that is exposed to externally applied time-dependent shear stress in a planar …
elastic disks, that is exposed to externally applied time-dependent shear stress in a planar …
Intruder dynamics in a frictional granular fluid: A molecular dynamics study
We study the dynamics of an intruder moving through a fluidized granular medium in three
dimensions (d= 3). The intruder and grains have both translational and rotational degrees of …
dimensions (d= 3). The intruder and grains have both translational and rotational degrees of …
Drag reduction during the side-by-side motion of a pair of intruders in a granular medium
When several intruders move in a granular medium, coupling effects are observed, the
motion of one intruder affecting that of others. In this paper, we investigate experimentally …
motion of one intruder affecting that of others. In this paper, we investigate experimentally …