Results 11 to 20 of about 240,216 (295)
Entangled granular media [PDF]
Physical Review Letters, 2012 We study the geometrically induced cohesion of ensembles of granular "u-particles" which mechanically entangle through particle interpenetration. We vary the length-to-width ratio $l/w$ of the u-particles and form them into free-standing vertical columns.
Franklin, Scott V. +3 more
core +5 more sources
Swimming in Granular Media [PDF]
Physical Review E, 2009 We study a simple model of periodic contraction and extension of large intruders in a granular bed to understand the mechanism for swimming in an otherwise solid media.
Dirk Kadau +4 more
core +3 more sources
Microrollers flow uphill as granular media. [PDF]
Nat Commun, 2023 AbstractPour sand into a container and only the grains near the top surface move. The collective motion associated with the translational and rotational energy of the grains in a thin flowing layer is quickly dissipated as friction through multibody interactions.
Wilson-Whitford SR +4 more
europepmc +5 more sources
Glass transition in granular media [PDF]
Europhysics Letters (EPL), 2004 In the framework of schematic hard spheres lattice models for granular media we investigate the phenomenon of the ``jamming transition''. In particular, using Edwards' approach, by analytical calculations at a mean field level, we derive the system phase
+19 more
core +6 more sources
Key connection between gravitational instability in physical gels and granular media [PDF]
Scientific Reports, 2022 We study gravitationally-driven (Rayleigh–Taylor-like) instability in physical gels as a model for the behavior of granular media falling under gravity; physical gels have a structural elasticity and may be fluidized, capturing both the solid and liquid ...
Kazuya U. Kobayashi, Rei Kurita
doaj +2 more sources
Physical Review E, 2002 Aging behavior is an important effect in the friction properties of solid surfaces. In this paper we investigate the temporal evolution of the static properties of a granular medium by studying the aging over time of the maximum stability angle of ...
A. Forsyth +30 more
core +5 more sources
Rheology of Weakly Vibrated Granular Media [PDF]
Physical Review E, 2013 We probe the rheology of weakly vibrated granular flows as function of flow rate, vibration strength and pressure by performing experiments in a vertically vibrated split-bottom shear cell.
Dijksman, Joshua A. +2 more
core +7 more sources
Burrowing and unburrowing in submerged granular media through fluidization and shape-change [PDF]
Frontiers in Robotics and AISubterranean exploration in submerged granular media (GM) presents significant challenges for robotic systems due to high drag forces and the complex physics of GM.
Aniruddha Nayak +3 more
doaj +2 more sources
Force Distributions in Frictional Granular Media [PDF]
Physical Review E, 2018 We report a joint experimental and theoretical investigation of the probability distribution functions (pdf's) of the normal and tangential (frictional) forces in amorphous frictional media.
Akella, V. S. +4 more
core +6 more sources
Effect of packer design on hydraulic fracturing of coal seam [PDF]
E3S Web of Conferences, 2021 The article addresses the issue of in-situ methane drainage from coal seams using multiple hydraulic fracturing. The authors undertake the stress–strain analysis of rock mass in the vicinity of a drainage borehole subjected to loading by sealing packers ...
Klishin Sergei, Klishin Vladimir
doaj +1 more source