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作者:J. Wiącek , P. Parafiniuk , M. Stasiak
来源:[J].Granular Matter(IF 1.504), 2017, Vol.19 (2)
摘要:This paper is an extension of the recent work of Wiącek (Granul Matter 18:42, 2016 ), wherein geometrical parameters of binary granular mixtures with various particle size ratio and contribution of the particle size fractions were investigated. In this study, a micromechanic...
作者:Frederik Elskamp , Harald Kruggel-Emden , Manuel Hennig ...
来源:[J].Granular Matter(IF 1.504), 2017, Vol.19 (3)
摘要:In Discrete element method (DEM) simulations the choice of appropriate contact parameters is significant to obtain reasonable results. Particularly, for the determination of DEM parameters for non-spherical particles a general straightforward procedure is not available. Therefore...
作者:C. Sohn , Y. D. Zhang , M. Cil ...
来源:[J].Granular Matter(IF 1.504), 2017, Vol.19 (4)
摘要:Particle size and shape are major factors in determining the mechanical behavior of granular media. This paper discusses experiments conducted at particle and assembly scales on two materials (i.e., glass beads and quartz sand) and it interprets them in light of fracture mechanic...
作者:J. Liu , E. Bosco , A. S. J. Suiker
来源:[J].Granular Matter(IF 1.504), 2017, Vol.19 (4)
摘要:Novel numerical algorithms are presented for the implementation of micro-scale boundary conditions of particle aggregates modelled with the discrete element method. The algorithms are based on a servo-control methodology, using a feedback principle comparable to that of algo...
作者:Masahide Otsubo , Catherine O’Sullivan , Kevin J. Hanley ...
来源:[J].Granular Matter(IF 1.504), 2017, Vol.19 (3)
摘要:Laboratory geophysics tests including bender elements and acoustic emission measure the speed of propagation of stress or sound waves in granular materials to derive elastic stiffness parameters. This contribution builds on earlier studies to assess whether the received sign...
作者:Shmulik Pinkert
来源:[J].Granular Matter(IF 1.504), 2017, Vol.19 (3)
摘要:The mechanical behavior of hydrate-bearing sands is affected by the hydrate quantity, hydrate morphology in the pores, soil skeleton characteristics, stress confinement and more. It has been traditionally assumed that bonding exists between hydrate and sand particles, which affec...
作者:François Nader , Claire Silvani , Irini Djeran-Maigre
来源:[J].Granular Matter(IF 1.504), 2017, Vol.19 (3)
摘要:Grain breakage in rockfill in civil engineering structures is the major cause responsible for settlement and collapse. It is inherently due to large grain size and angular shape of the grains. To model these features, a three-dimensional discrete element model of a breakable grai...
作者:M. Y. Naz , S. A. Sulaiman , S. Shukrullah ...
来源:[J].Granular Matter(IF 1.504), 2017, Vol.19 (2)
摘要:In this study, hydrodynamics of spherical particles in uniform swirling regime of a fluidized bed were investigated using MATLAB supported particle imaging velocimetry (PIV). A least investigated mesh-type distributor was used to fluidize the bed particles, at different air entry...
作者:Guodong Zhang , Marte Gutierrez , Mingzhong Li
来源:[J].Granular Matter(IF 1.504), 2017, Vol.19 (2)
摘要:The placement of proppant in hydraulic fractures, which is governed by slurry flow, proppant transport and settlement, can significantly affect the conductivity of the fracture, and this will subsequently affect the productivity of the hydraulically fractured wells. To investigat...
作者:Hirotake Udono , Mikio Sakai
来源:[J].Granular Matter(IF 1.504), 2017, Vol.19 (4)
摘要:Inertial microfluidics is regarded as a promising approach to facilitate precise, robust and continuous manipulation of particles through inertial focusing of particles in microchannels. Although there is a need to gain rich insights into the focusing dynamics of particles, ...

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