Results 31 to 40 of about 137,006 (311)

Compaction dynamics of crunchy granular material

open access: yesEPJ Web of Conferences, 2017
Compaction of brittle porous material leads to a wide variety of densification patterns. Static compaction bands occurs naturally in rocks or bones, and have important consequences in industry for the manufacturing of powder tablets or metallic foams for
Guillard François   +4 more
doaj   +1 more source

Granule structure influences on force chain development in the slag medium

open access: yes地质科技通报, 2022
The slag dumps formed by mining activities are irregular granular media. Their particle size gradations are complex and granule structures are unstable.The stress between particles is transferred through the dependently unstable force chain.
Minfeng Lu   +5 more
doaj   +1 more source

Operational characteristics of four metering systems for agricultural fertilizers and amendments Características de operação de quatro dosadores para a distribuição de fertilizantes e corretivos comerciais

open access: yesEngenharia Agrícola, 2009
The use of fertilizers and solid amendments in agriculture generates special interest for their effect on crop productivity, as well as for their environmental impact.
Jesus H. Camacho-Tamayo   +4 more
doaj   +1 more source

Granular shear flow in varying gravitational environments [PDF]

open access: yes, 2013
Despite their very low surface gravities, asteroids exhibit a number of different geological processes involving granular matter. Understanding the response of this granular material subject to external forces in microgravity conditions is vital to the ...
Murdoch, Naomi   +8 more
core   +1 more source

Jamming for a 2D granular material [PDF]

open access: yesSoft Matter, 2010
This paper focuses on the nature of jamming, as seen in two-dimensional frictional granular systems consisting of photoelastic particles. The photoelastic technique is unique at this time, in its capability to provide detailed particle-scale information on forces and kinematic quantities such as particle displacements and rotations.
Zhang, J   +3 more
openaire   +1 more source

Granular flows down inclined channels with a strain-rate dependent friction coefficient. Part I: Non-cohesive materials [PDF]

open access: yes, 2008
The flow of a granular material down an incline of finite width with a strain-rate dependent coefficient of friction and a conical yield criterion is semi-analytically obtained using a characteristic method for flows on a deep layer of grains.
Ansart, Renaud   +2 more
core   +1 more source

Packing of Compressible Granular Materials [PDF]

open access: yesPhysical Review Letters, 2000
4 pages, 7 figures, to appear in Phys.
Makse, Hernan A.   +2 more
openaire   +3 more sources

Granular jamming based robotic gripper for heavy objects; pp. 421–428 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2019
Moving heavy objects with overhead cranes requires the operator to fasten the object to a hook with ropes or chains. This is a time-consuming process, which could be avoided by using universal grippers that can lift objects of any shape.
Jesse Miettinen   +4 more
doaj   +1 more source

Micromechanics of Liquefaction in Granular Materials [PDF]

open access: yesPhysical Review Applied, 2018
A discrete element method (DEM) implementation is developed to study the micromechanics of liquefaction in granular materials. In a liquefaction event, the pore water acts as a cushion between the grains, reducing the contact and friction forces and the overall soil strength.
Galindo-Torres, S. A.   +2 more
openaire   +4 more sources

Simulation of continuum heat conduction using DEM domains [PDF]

open access: yes, 2012
Currently, almost all material manufacturing processes are simulated using methods based on continuum approaches such as the Finite Element Method (FEM).
CHARLES, Jean-Luc   +3 more
core   +1 more source

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