Results 21 to 30 of about 139,467 (311)

Kinetic theory of aggregation in granular flow [PDF]

open access: yes, 2011
This article presents a mathematical formulation of the aggregation kinetics in granular flow. The traditional kinetic theory and its generalized application to granular flow does not allow for particle size to change with time thus cannot be used to ...
L. Liu, Liu, L., Liu, Lande
core   +1 more source

Viscoelasticity of granular materials

open access: yesMechanics of Materials, 1995
Abstract In a former work (V.T. Granik and M. Ferrari (1993), Microstructural mechanics of granular media, Mech. Mater. 15, 301–322) a micromechanical theory for elastic granular media was deduced on the basis of the identification of the constituent grains with the nodes of a Bravais lattice.
Maddalena F., Ferrari M.
openaire   +2 more sources

Scaling properties of granular materials [PDF]

open access: yesPhysical Review E, 2001
Given an assembly of viscoelastic spheres with certain material properties, we raise the question how the macroscopic properties of the assembly will change if all lengths of the system, i.e. radii, container size etc., are scaled by a constant. The result leads to a method to scale down experiments to lab-size.
Poeschel, Thorsten   +2 more
openaire   +3 more sources

Experimental Study on the Characteristics of Granular Materials’ Flows and Fractures under Uniaxial Compression

open access: yesAdvances in Civil Engineering, 2020
The mechanical behaviors of granular materials have high complexity. Since the mechanical behaviors of granular materials are difficult to describe theoretically, in this paper, the flow and fracture characteristics of granular materials were discussed ...
Futian Zhao   +6 more
doaj   +1 more source

Mixing Fluids and Granular Materials [PDF]

open access: yesComputer Graphics Forum, 2009
AbstractFluid animations in computer graphics show interactions with various kinds of objects. However, fluid flowing through a granular material such as sand is still not possible within current frameworks. In this paper, we present the simulation of fine granular materials interacting with fluids.
Lenaerts, Toon, Dutré, Philip
openaire   +2 more sources

Transport Properties and Segregation Phenomena in Vibrating Granular Beds

open access: yesKONA Powder and Particle Journal, 2016
Granular materials are common in daily life and in many industrial processes. Both fundamental research and industrial application studies are crucial for understanding the transport properties and segregation mechanisms of vibrating granular beds.
Chun-Chung Liao, Shu-San Hsiau
doaj   +1 more source

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 variation of grain size distribution in rock granular material in seepage process considering the mechanical–hydrological–chemical coupling effect: an experimental research [PDF]

open access: yesRoyal Society Open Science, 2020
As a common solid waste in geotechnical engineering, rock granular material should be properly treated and recycled. Rock granular material often coexists with water when it is used as the filling material in geotechnical engineering.
Hailing Kong   +2 more
doaj   +1 more source

Granular flows down inclined channels with a strain-rate dependent friction coefficient. Part I: Non-cohesive materials [PDF]

open access: yes, 2008
The flow of a granular material down an incline of finite width with a strain-rate dependent coefficient of friction and a conical yield criterion is semi-analytically obtained using a characteristic method for flows on a deep layer of grains.
Ansart, Renaud   +2 more
core   +1 more source

Granular Crystals: Controlling Mechanical Energy with Nonlinearity and Discreteness [PDF]

open access: yes, 2011
The presence of structural discreteness and periodicity can affect the propagation of phonons, sound, and other mechanical waves. A fundamental property of many of the periodic structures and materials designed for this purpose is the presence of ...
Boechler, Nicholas Sebastian
core   +1 more source

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