Homogeneous crystallization in cyclically sheared frictionless grains
arXiv:2008.01920 · doi:10.1103/PhysRevLett.125.258003
Abstract
Many experiments over the past half century have shown that, for a range of protocols, granular materials compact under pressure and repeated small disturbances. A recent experiment on cyclically sheared spherical grains showed significant compaction via homogeneous crystallization (Rietz et al., 2018). Here we present numerical simulations of frictionless, purely repulsive spheres undergoing cyclic simple shear with dissipative Newtonian dynamics at fixed vertical load. We show that for sufficiently small strain amplitudes, cyclic shear gives rise to homogeneous crystallization at a volume fraction . This result indicates that neither friction nor gravity is essential for homogeneous crystallization in driven granular media.
arXiv comment5 pages, 4 figures
References in corpus (16)
- Is Random Close Packing of Spheres Well Defined?
- The Geometrical Structure of Disordered Sphere Packings
- Nonequilibrium glass transitions in driven and active matter
- Jamming transitions in amorphous packings of frictionless spheres occur over a continuous range of volume fractions
- Stationary state volume fluctuations in a granular medium
- Compaction of a granular material under cyclic shear
- A first-order phase transition at the random close packing of hard spheres
- Packing grains by thermally cycling
- Glass Transition for Driven Granular Fluids
- Fluctuations and Criticality of a Granular Solid-Liquid-like Phase Transition
- Nucleation in sheared granular matter
- Random close packing of granular matter
- Calculations of the Structure of Basin Volumes for Mechanically Stable Packings
- Strong Dynamical Heterogeneity and Universal Scaling in Driven Granular Fluids
- Melting a granular glass by cooling
- Phases of granular matter