Granular materials composed of shape-anisotropic grains

Abstract

Granulate physics has made considerable progress during the past decades in the understanding of static and dynamic properties of large ensembles of interacting macroscopic particles, including the modeling of phenomena like jamming, segregation and pattern formation, the development of related industrial applications or traffic flow control. The specific properties of systems composed of shape-anisotropic (elongated or flattened) particles have attracted increasing interest in recent years. Orientational order and self-organization are among the characteristic phenomena that add to the special features of granular matter of spherical or irregular particles. An overview of this research field is given.

Review article, 19 pages, 13 figures, final version published in Soft Matter (2013)

References in corpus (11)

• Swarming and swirling in self-propelled polar granular rods
• Minimal model for active nematics: quasi-long-range order and giant fluctuations
• Hypoconstrained Jammed Packings of Nonspherical Hard Particles: Ellipses and Ellipsoids
• Stress-strain behavior and geometrical properties of packings of elongated particles
• Excitations of Ellipsoid Packings near Jamming
• Jamming of 3D Prolate Granular Materials
• Particle shape dependence in 2D granular media
• MR Imaging of Reynolds Dilatancy in the Bulk of Smooth Granular Flows
• Rods are less fragile than spheres: Structural relaxation in dense liquids composed of anisotropic particles
• Angular velocity distribution of a granular planar rotator in a thermalized bath
• Temporal and structural characteristics of a two dimensional gas of hard needles

Cited by in corpus (45)

• Fundamental challenges in packing problems: from spherical to non-spherical particles
• Rheological properties of dense granular flows
• Effect of Shape and Friction on the Packing and Flow of Granular Materials
• Packing, alignment and flow of shape-anisotropic grains in a 3D silo experiment
• Effects of grain shape on packing and dilatancy of sheared granular materials
• Rheology of dense granular flows for elongated particles
• Asymmetric concentration dependence of segregation fluxes in granular flows
• Free Cooling of a Granular Gas in Three Dimensions
• Wetting of crossed fibers: multiple steady states and symmetry breaking
• Domain walls in two-dimensional nematics confined in a small circular cavity
• Ordering in granular rod monolayers driven far from thermodynamic equilibrium
• Machine Learning Characterization of Structural Defects in Amorphous Packings of Dimers and Ellipses
• Compression Driven Jamming of Athermal Frictionless Spherocylinders in Two Dimensions
• Flow and rheology of frictional elongated grains
• Yielding, Rigidity, and Tensile Stress in Sheared Columns of Hexapod Granules
• Orientational Ordering in Athermally Sheared, Aspherical, Frictionless Particles
• Heaping, Secondary Flows and Broken Symmetry in Flows of Elongated Granular Particles
• Compression- and Shear-Driven Jamming of U-Shaped Particles in Two Dimensions
• Mechanical tuning of the evaporation rate of liquid on crossed fibers
• Shear-Driven Flow of Athermal, Frictionless, Spherocylinder Suspensions in Two Dimensions: Stress, Jamming, and Contacts
• Effect of particle shape on the flow of an hourglass
• Diffusion-driven self-assembly of rod-like particles: Monte Carlo simulation on a square lattice
• Jamming transition in non-spherical particle systems: pentagons vs. disks
• Secondary flow in ensembles of non-convex granular particles under shear
• Anisotropic Particles Strengthen Granular Pillars under Compression
• Random sequential adsorption of partially ordered discorectangles onto a continuous plane
• A simple model system for self-propelled particles passing a bottleneck
• Shear-Driven Flow of Athermal, Frictionless, Spherocylinder Suspensions in Two Dimensions: Particle Rotations and Orientational Ordering
• Discharge of elongated grains from silo with rotating bottom
• Stress propagation in locally loaded packings of disks and pentagons
• Reducing segregation in vibrated binary-sized granular mixtures by excessive small particle introduction
• Athermal shearing of frictionless cross-shaped particles of varying aspect ratio
• Flow of asymmetric elongated particles
• Dynamics of wet granular hexagons
• Pattern formation in a two-dimensional two-species diffusion model with anisotropic nonlinear diffusivities: a lattice approach
• Densest versus jammed packings of bent-core trimers
• Densest vs. jammed packings of 2D bent-core trimers
• Shear-Driven Flow of Athermal, Frictionless, Spherocylinder Suspensions in Two Dimensions: Spatial Structure and Correlations
• Characterisation of diffusion-driven self-organisation of rodlike particles by means of entropy of generalised two-dimensional words
• Elongated particles discharged with a conveyor belt in a two-dimensional silo
• Dynamic Phases and Combing Effects for Elongated Particles Moving Over Quenched Disorder
• Monte Carlo simulation of entropy-driven pattern formation in two-dimensional system of rectangular particles
• Impact of packing fraction on diffusion-driven pattern formation in a two-dimensional system of rod-like particles
• Shear flow of frictional spheroids: Comparison between elongated and flattened particles
• Collective alignment controls rotation frustration in granular flows of elongated particles