Results 191 to 200 of about 1,211,649 (237)
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Particle breakage in transitional soils
2017Oedometer tests were conducted to investigate whether particle breakage plays a significant role in the compression of transitional soils. Artificial mixtures of a carbonate sand and kaolin or a crushed quartz silt were both found to give measurable breakage within the sand fraction even at modest stresses, which is in contrast to the findings from ...
SHIPTON B. J. I +2 more
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Statistics of multiple particle breakage
AIChE Journal, 1996AbstractA method for generating theoretical breakage distribution functions for multiple particle breakage is presented. It starts with the joint probability function that accounts for all the child particles; it is then reduced to the marginal probability function commonly used in the breakage equation. This method is flexible enough to allow the user
Priscilla J. Hill, Ka M. Ng
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Modeling the Particle Breakage via Breakage Energy during Triaxial Shearing
Journal of Testing and Evaluation, 2022Abstract Rockfill materials are widely used as foundation in construction and different degrees of particle breakage inevitably show different characteristics. The breakage index (e.g., Marsal breakage index, Bg) of rockfill materials directly measured though experimental method naturally has an intrinsic correlation with the physical ...
Fuxian Jian, Xiaomei Li, Wanli Guo
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Particle Breakage in Agitated Dryers
AIP Conference Proceedings, 2009A method for predicting particle breakage in agitated dryers is described. The method utilizes an estimation of stresses and strains occurring in a dryer bed sheared by an impeller using the Distinct Element Method (DEM). An assemblage of particles is then subjected to these stresses in a shear cell to assess the extent of attrition under a range of ...
Colin L. Hare +5 more
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Note: Particle adhesion and imaging of particle/surface breakage zone
Review of Scientific Instruments, 2012An AFM methodology to enable measurement of the adhesion of micrometre sized objects, having contact areas in the range of nanometre to micrometer, is reported. The method also enables imaging of the actual breakage zone on both the surface and the removed object to obtain further information regarding the breakage zone.
Torbjörn, Pettersson +2 more
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Particle Breakage of a Crushed Sandstone–Mudstone Particle Mixture
2021Sandstone–mudstone particle mixture (SMPM) is often used as a main filling material in many agriculture-related and civil engineering works such as in rockfill dams and filling foundations. The SMPM was found crushed seriously since it is mixed with mudstone particles.
Zhenfeng Qiu +3 more
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Effect of Target Walls on the Breakage of Composite Particles
Chemical Engineering & Technology, 2008AbstractThe DEM simulation of the effect of target walls on the comminution of composite particles is studied. Different designs of target walls were considered to achieve the maximum liberation degree, suitable particle size distributions and new surface generation.
Khanal, M., Tomas, J.
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International Journal of Rock Mechanics and Mining Sciences, 2001
Abstract A numerical approach to particle breakage is applied using the Rock Failure Process Analysis code, RFPA 2D . The numerical tool is validated by simulating the Brazilian test with a two-dimensional disk sample. Then two irregularly shaped particles with an exact geometry and exact mechanical properties are numerically modelled to investigate ...
C.A. Tang +4 more
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Abstract A numerical approach to particle breakage is applied using the Rock Failure Process Analysis code, RFPA 2D . The numerical tool is validated by simulating the Brazilian test with a two-dimensional disk sample. Then two irregularly shaped particles with an exact geometry and exact mechanical properties are numerically modelled to investigate ...
C.A. Tang +4 more
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Particle breakage in glacial sediments
2017In most areas of glacial deposits, soils were deposited by ice sheet expansion or contraction, and produced by deformation and mixing of pre-existing soft sediments. The resulting soil (till) is well graded. In some cases the remixing and shearing of sediments by glaciers has caused a redistribution of particle sizes by abrasion and crushing.
Sammonds, P, Altuhafi, F, Baudet, BA
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Chemical Engineering Research and Design, 2012
Abstract Broadbent and Calcott's breakage matrix methodology has been used for more than 50 years to model various comminution processes and to determine breakage functions from experimental data. The methodology assumes first-order law of breakage and neglects mechanical multi-particle interactions that are especially prevalent in dense-phase ...
E. Bilgili, M. Capece
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Abstract Broadbent and Calcott's breakage matrix methodology has been used for more than 50 years to model various comminution processes and to determine breakage functions from experimental data. The methodology assumes first-order law of breakage and neglects mechanical multi-particle interactions that are especially prevalent in dense-phase ...
E. Bilgili, M. Capece
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