Athermal shearing of frictionless cross-shaped particles of varying aspect ratio
arXiv:1903.00533 · doi:10.1007/s10035-019-0966-7
Abstract
We use numerical simulations to study the shear-driven steady-state flow of athermal, frictionless, overdamped, two dimensional cross-shaped particles of varying aspect ratios, and make comparison with the behavior of rod-shaped and staple-shaped particles. We find that the extent of non-convexity of the particle shape plays an important role in determining both the value of the jamming packing fraction as well as the rotational motion and orientational ordering of the particles.
arXiv comment13 pages, 16 figures; revised to match published version; added discussion of macroscopic friction; several new/revised figures
References in corpus (21)
- Jamming at Zero Temperature and Zero Applied Stress: the Epitome of Disorder
- Hypoconstrained Jammed Packings of Nonspherical Hard Particles: Ellipses and Ellipsoids
- Stress-strain behavior and geometrical properties of packings of elongated particles
- Particle Shape Effects on the Stress Response of Granular Packings
- Tetratic Order in the Phase Behavior of a Hard-Rectangle System
- Granular materials composed of shape-anisotropic grains
- Critical scaling near jamming transition for frictional granular particles
- Jamming in Systems Composed of Frictionless Ellipse-Shaped Particles
- Isostaticity at Frictional Jamming
- Excitations of Ellipsoid Packings near Jamming
- Disentangling the role of structure and friction in shear jamming
- Hypostatic jammed packings of frictionless nonspherical particles
- Duality in Shearing Rheology Near the Athermal Jamming Transition
- Effects of grain shape on packing and dilatancy of sheared granular materials
- Constraints and vibrations in static packings of ellipsoidal particles
- Rheology of dense granular flows for elongated particles
- Numerical Investigation of the Evolution of Sandpiles
- Compression Driven Jamming of Athermal Frictionless Spherocylinders in Two Dimensions
- Orientational Ordering in Athermally Sheared, Aspherical, Frictionless Particles
- Compression- and Shear-Driven Jamming of U-Shaped Particles in Two Dimensions
- Shear-Driven Flow of Athermal, Frictionless, Spherocylinder Suspensions in Two Dimensions: Stress, Jamming, and Contacts