Results 11 to 20 of about 365,176 (302)

Liquid migration in flowing granular materials [PDF]

open access: yesEPJ Web of Conferences, 2021
In partially wet granular beds, liquid migrates between particles due to collisions and contacts. This, in turn, influences the flow behaviour of the granular bed.
Hagen Thijmen   +4 more
doaj   +1 more source

Mesoscale inertial transition in granular materials [PDF]

open access: yesEPJ Web of Conferences, 2021
Granular assemblies can experience complex failure patterns along a given loading path, with a distribution of ephemeral inertial events marked by local outbursts in kinetic energy.
Clerc Adriane   +3 more
doaj   +1 more source

Flow in an hourglass: particle friction and stiffness matter

open access: yesNew Journal of Physics, 2021
Granular flow out of a silo is studied experimentally and numerically. The time evolution of the discharge rate as well as the normal force (apparent weight) at the bottom of the container is monitored. We show that particle stiffness has a strong effect
Tivadar Pongó   +7 more
doaj   +1 more source

The role of the particle aspect ratio in the discharge of a narrow silo

open access: yesNew Journal of Physics, 2022
The time evolution of silo discharge is investigated for different granular materials made of spherical or elongated grains in laboratory experiments and with discrete element model (DEM) calculations.
Tivadar Pongó   +6 more
doaj   +1 more source

Mechanical behavior and particle crushing of irregular granular material under high pressure using discrete element method

open access: yesScientific Reports, 2023
This study investigated the influence of stress levels on the mechanical behavior and particle crushing of irregular granular materials. Granular materials with irregular sides were modelled using the discrete element method.
Qinglin Chen   +5 more
doaj   +1 more source

Characterizing flowability of granular materials by onset of jamming in orifice flows [PDF]

open access: yesPapers in Physics, 2015
This paper describes methods to measure flow rate and jamming onset of granules discharged through a flat-bottom cylindrical hopper with a circular orifice.
Paul Mort
doaj   +1 more source

Rheology of two-dimensional crushable granular materials [PDF]

open access: yesEPJ Web of Conferences, 2021
The rheology of two-dimensional crushable granular materials under shear is numerically studied using the discrete element method. We find that the mean fragment size changes as the shear strain increases while the shear stress is almost independent of ...
Ishikawa Haruto   +2 more
doaj   +1 more source

Thermal shakedown in granular materials with irregular particle shapes. [PDF]

open access: yesSci Rep
Granular materials with irregular particle shapes undergo a myriad of temperature variations in natural and engineered systems. However, the impacts of cyclic temperature variations on the mechanics of granular materials remain poorly understood ...
Pan Y, Gong X, Rotta Loria AF.
europepmc   +2 more sources

Rheology of soft granular materials: uniaxial compression [PDF]

open access: yesEPJ Web of Conferences, 2021
Soft granular materials are assemblies of highly deformable grains interacting via surface forces. The large grain deformations of these materials differ them from hard granular systems, in which, their behaviors are essentially governed by grain ...
Nezamabadi Saeid   +4 more
doaj   +1 more source

Damping mechanisms of granular-material damper in structure with high natural frequency (Study of flow of vibration energy)

open access: yesNihon Kikai Gakkai ronbunshu, 2019
We investigated the damping mechanism of a granular-material damper for a structure with a high natural frequency. We focused on the flow of the granular-material vibration energy and considered its relationship with the damping characteristics.
Tomoko KOGA, Taichi SATO, Rei KAGEYAMA
doaj   +1 more source

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