Crushing Of Granular Materials

DEM Study on Particle Shape Evolution during Crushing of …

of Granular Materials Mukesh Singh Bisht 1 and Arghya Das 2 Abstract: Discrete element method (DEM) is widely used to simulate particle crushing, and the simulation results are further …

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The relevance of roundness to the crushing strength of granular materials

Some triaxial and crushing tests were performed on granular assemblies made of homogeneous limestone particles with two parallel grain size distributions. Comparison between experimental …

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On the packing and crushing of granular materials

This paper attempts to identify which particles govern the overall density of a granular material, and a new definition of the 'smallest particles' is proposed. These particles …

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Discrete numerical modeling of granular materials considering

The aim of this study is to numerically investigate the influence of particle breakage on the mechanical behavior of granular materials using a discrete element method (DEM). To …

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DEM Study on Particle Shape Evolution during Crushing of …

In this study, one-dimensional (1D) compression on crushable granular materials is simulated using two-dimensional (2D) DEM to identify the specific role of evolving fragment shape during …

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A unified fractional breakage model for granular materials inspired …

It is widely acknowledged that undergoing substantial grain crushing, the PSDs of granular materials becomes self-similar, also known as fractal. Herein based on the …

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‪Vallejo Luis E.‬

Visualization of crushing evolution in granular materials under compression using DEM. S Lobo-Guerrero, LE Vallejo, LF Vesga. International Journal of Geomechanics 6 (3), 195-200, 2006. …

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Mechanical behavior and particle crushing of irregular granular

Granular materials with irregular sides were modelled using the discrete element method. A new method of using a shear fracture zone to characterize the deformation of …

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DEM Study on Particle Shape Evolution during Crushing of Granular Materials

In this study, one-dimensional (1D) compression on crushable granular materials is simulated using two-dimensional (2D) DEM to identify the specific role of evolving fragment …

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Ultrasonic investigation of granular materials subjected to compression

Ultrasonic wave propagation measurement has been used as a suitable technique for studying the granular materials and investigating the soil fabric structure, the grain contact …

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Visualization of Crushing Evolution in Granular Materials under

Granular materials forming part of natural slopes, embankments, subgrades of foundations, and pavement structures are subjected to both static and dynamic loads during …

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Particle Crushing and Deformation Behaviour

Particle breakage occurs in granular materials with various engineering applications, such as when driving piles (especially where the strength of the particles is low) and in debris …

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Ultrasonic investigation of granular materials subjected to …

The deformation of granular soil layers has been always introduced as a critical topic in geotechnical engineering from tunneling and underground construction to design of building …

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Fractal crushing of granular materials under confined …

We investigate confined comminution of a representative granular material, quartz sand, under quasi-static and dynamic compression at different stress levels, with SHPB and …

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A micro‐macromechanical compression model of crushing in …

This paper presents a micro and macromechanical model to estimate the grading evolution and plastic strain caused by particle crushing in the isotropic compression of …

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Shear strength of granular materials based on fractal …

The strength behavior of granular materials depends on the integrity of the particles or the amount of particle crushing that occurs due to changes in stress [[9], [10], [11], …

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Particle crushing and critical state surface of porous granular

This equation models the crushing and critical state of porous granular materials with a clearer physical meaning than the "crushing surface" equation. It is noted that, when Eq. (12) is …

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One-Dimensional Compression Fractal Theory and Experimental

Abstract Coarse-grained soil particles are suspectible to breakage under high-stress conditions, with particle breakage being the main reason for the compression of …

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Analysis of Crushing of Granular Material Under Isotropic and Biaxial

Engrg. 122: 4 (1996) 309-316 Lade, P. V., Yamamuro, J. A. and Bopp, P. A. (1996): Significance of particle crushing in granular materials, J. Geotech. Engrg., 122(4), 309-316. 14) …

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The relevance of roundness to the crushing strength of granular materials

The prediction of the crushing strength of sands is still an unresolved problem in soil mechanics. For natural sand grains with a regular geometry, Weibull theory has long been …

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Analysis of the influence of crushing on the behavior of granular

The behavior of granular materials mainly depends on the mechanical and engineering properties of particles in its structural matrix. Crushing or breakage of granular …

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Effect of realistic shape on grain crushing for rounded and angular

From the microscopic point of view, rockfill dam is composed of discrete granular materials with different sizes and shapes, grain crushing and grain rearrangement are two root …

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Modelling of granular materials at crushing-dominant stage

Granular crushing significantly changes mechanical behaviours, especially under elevated stress levels. Therefore, this study aims to develop a model to simulate the …

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The relevance of roundness to the crushing strength of granular materials

The relevance of roundness to the crushing strength of granular materials. ... The new criterion is suitable for implementation in particle-scale crushing simulations of granular …

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Behavior of Granular Materials Affected by Grain Breakage

The crushable granular materials are made of spherical grains fabricated by mineral powder agglomeration, with a diameter from 1.6 to 4.0 mm. Ezaoui et al. [EZA 10] carried out …

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Fractal crushing of granular materials under confined compression …

Quasi-static and dynamic compression experiments are conducted on quartz sand, to study the stress-induced gradation evolution of granular materials under confined …

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Tricking the fractal nature of granular materials subjected to crushing

Nevertheless, crushing granular materials is a complex process influenced by many factors. For example, the distribution of unbreakable particles in the volume of the sample is …

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Modeling the single particle crushing behavior by random discrete

For this purpose, extensive investigations on the crushing behavior of granular materials have been carried out using various experimental approaches, including single …

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Significance of Particle Crushing in Granular Materials

Particle breakage occurs when the stresses imposed on soil particles exceed their strength. To quantify the amount of breakage, many particle breakage factors have been …

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Mechanical behavior and particle crushing of irregular granular

Many factors affect the particle crushing of granular materials, such as relative density, particle size, particle shape, etc. 9,10. The effect of particle crushing on internal friction angle of rockfill …

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DEM analysis of crushing evolution in cemented granular materials

The results of crushing of particle in the current work were inspired by the experimental work done by Lee (1992) where he conducted single particle crushing tests on …

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Modelling of granular materials at crushing-dominant stage

Therefore, this study aims to develop a model to simulate the constitutive behaviours of granular materials at the crushing-dominant stage. Firstly, the contour of elastic …

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Compression of granular materials

Compression data on over 100 sands were examined to clarify the role of particle rearrangement through interparticle slip and rotation and particle damage on primary compression, including …

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Evolution of grading and particle crushing of rockfills upon …

There is substantial evidence that crushable soils (e.g., sands, gravels, rockfills, etc.) undergo particle crushing upon shearing or over creeping. To investigate the evolution of grading and …

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Numerical model of crushing of grains inside two-dimensional granular

Crushing grains in order to obtain a finely divided powder is an important process for many industrial applications. However, in most cases, it is energetically very expensive with a …

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The mechanics of brittle granular materials with …

There is also substantial consensus that grain shape influences the crushing strength of both individual particles and packed assemblies, ... we propose a new constitutive theory for crushable granular materials that …

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Multiscale modeling of continuous crushing of granular media

Particle crushing is a fundamental physical process underlying many macromechanical behaviors of granular materials. It has great relevance to many fields …

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Investigation on relations between grain crushing amount and …

Energy method has been used to theoretically investigate the effect of grain crushing on strength and deformation of granular materials [11], [12], [13].In the pioneer work …

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Particle breakage in granular materials — a conceptual framework

A simple, yet complete framework is introduced with the aim of modelling grain breakage in soils and crushable granular materials. The evolution of grain breakage is …

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