Results 31 to 40 of about 365,176 (302)

Micromechanics-based stress-dilatancy relationship for granular materials

open access: yesYantu gongcheng xuebao, 2021
From the perspective of micromechanics, the formulas for the average contact force and contact displacement in the granular are derived based on the true stress tensor, then the stress-shear dilatancy relationship considering the fabric anisotropy and ...
LIU Yang 1, YU Peng-qiang 1, ZHANG Duo 2, WANG Xiao-xiao 1
doaj   +1 more source

The anisotropy of granular materials [PDF]

open access: yes, 2004
The effect of the anisotropy on the elastoplastic response of two dimensional packed samples of polygons is investigated here, using molecular dynamics simulation.
A. Okabe   +37 more
core   +3 more sources

Fuzzy batch controller for granular materials

open access: yesMATEC Web of Conferences, 2018
The paper focuses on batch control of granular materials in production of building materials from fluorine anhydrite. Batching equipment is intended for smooth operation and timely feeding of supply hoppers at a required level.
Zamyatin Nikolaj   +3 more
doaj   +2 more sources

Quasistatic response of loose cohesive granular materials [PDF]

open access: yesEPJ Web of Conferences, 2021
DEM-simulated model cohesive assemblies of spherical grains of diameter d, with contact tensile strength F0, once prepared in loose states, are quasistatically subjected to growing isotropic pressure P, and then to triaxial compression, maintaining ...
Lammali Walid   +2 more
doaj   +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

Theory of shear strength of granular materials based on particle breakage

open access: yesYantu gongcheng xuebao, 2018
Great efforts have been made to determine the shear strength of coarse granular materials using both elaborate laboratory tests and empirical methods. However, the elaborate laboratory tests are difficult and time consuming to perform, and the physical ...
XU Yong-fu
doaj   +1 more source

Physical and Compaction Properties of Granular Materials with Artificial Grading behind the Particle Size Distributions

open access: yesAdvances in Materials Science and Engineering, 2018
Granular materials in geotechnical engineering is generally considered to be mixtures of clay, sand, and gravel that commonly appear in slopes, valleys, or river beds, and they are especially used for the construction of earth-rock-filled dams.
Ming-liang Chen   +4 more
doaj   +1 more source

Interparticle Friction in Granular Ceramic Materials

open access: yesKONA Powder and Particle Journal, 2014
The frictional behaviour of dry ceramic materials in the form of spherical beads, sand and spray dried powders has been studied.
N. W. Page, M. Yousuff, C.J. Wauchope
doaj   +1 more source

Acoustic waves in granular materials [PDF]

open access: yes, 2007
Dynamic simulations with discrete elements are used to obtain more insight into the wave propagation in dense granular media. A small perturbation is created on one side of a dense, static packing and examined during its propagation until it arrives at ...
Luding, S., Mouraille, O.
core   +2 more sources

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

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