Results 21 to 30 of about 69,476 (301)

Discreet element modeling of under sleeper pads using a box test [PDF]

open access: yes, 2018
It has recently been reported that under sleeper pads (USPs) could improve ballasted rail track by decreasing the sleeper settlement and reducing particle breakage.
A Johansson   +35 more
core   +2 more sources

Comminution of Wood: Single‐Particle Breakage

open access: yesChemical Engineering & Technology, 2023
AbstractAn essential element for the sustainable use of renewable resources is an efficient comminution process. For efficient comminution processes, detailed knowledge of the fracturing processes is necessary. Therefore, single‐particle comminution under impact stress was investigated, and the influence of the moisture content and the particle size in
Moritz Eisenlauer   +5 more
openaire   +1 more source

Evolution of deformation and breakage in sand studied using X-ray tomography [PDF]

open access: yes, 2017
International audienceParticle breakage of a granular material can cause significant changes in its microstructure, which will govern its macroscopic behaviour; this explains why the mechanisms leading to particle breakage have been a common subject ...
Alshibli K. A.   +10 more
core   +3 more sources

Mechanistic analysis and computer simulation of impact breakage of agglomerates: Effect of surface energy [PDF]

open access: yes, 2006
Agglomerates are ubiquitous as intermediate or manufactured products in chemical, pharmaceutical and food industries. During handling and processing they may suffer breakage if they are weak.
Israelachvili   +11 more
core   +1 more source

Effects of the Shape and Size of Irregular Particles on Specific Breakage Energy under Drop Weight Impact

open access: yesShock and Vibration, 2019
Particle shape and size are main factors influencing particle breakage. Single-particle breakage tests were conducted on irregular magnetite ore using modified drop weight impact equipment to analyze the effect of shape and size on specific breakage ...
Deqing Gan   +5 more
doaj   +1 more source

Particle Breakage in a Scirocco Disperser [PDF]

open access: yesPowder Technology, 2015
Particle breakage during dry dispersion for particle sizing is of concern, yet little work has been carried out on its quantitative analysis. An integrated experimental and CFD modelling work has been carried out to study the breakage of a weak and friable powder in a Scirocco disperser at various nozzle pressures.
Muzammil Ali   +3 more
openaire   +1 more source

Dynamic response studies on aggregation and breakage dynamics of colloidal dispersions in stirred tanks [PDF]

open access: yes, 2008
Aggregation and breakage of aggregates of fully destabilized polystyrene latex particles in turbulent flow was studied experimentally in both batch and continuous stirred tanks using small-angle static light scattering. It was found that the steady-state
Ehrl, L.   +5 more
core   +1 more source

Wet granulation in laboratory-scale high shear mixers: Effect of chopper presence, design and impeller speed [PDF]

open access: yes, 2011
The effect of the main means of agitation in a high shear mixer has been investigated in this study. Granulation runs have been performed on a fine cohesive microcrystalline cellulose powder (Avicel 105, d50 = 20 μm) often used as a pharmaceutical ...
Chitu, Toma Mihai   +2 more
core   +3 more sources

On the micro mechanics of one-dimensional normal compression [PDF]

open access: yes, 2015
Discrete-element modelling has been used to investigate the micro mechanics of one-dimensional compression. One-dimensional compression is modelled in three dimensions using an oedometer and a large number of particles, and without the use of ...
Ashby M. F.   +6 more
core   +2 more sources

A Generalised Plastic Model for Gravelly Soils Considering Evolution of Void Ratio and Particle Breakage

open access: yesFrontiers in Physics, 2021
Gravelly soils exhibit complicated mechanical behaviours closely related to particle breakage and relative density state. To better capture the mechanical responses of gravelly soils, a generalised plastic model considering evolution of void ratio and ...
Jiuchang Zhang   +3 more
doaj   +1 more source

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