Results 21 to 30 of about 407,486 (302)

Mechanisms for slow strengthening in granular materials [PDF]

, 1999
Several mechanisms cause a granular material to strengthen over time at low applied stress. The strength is determined from the maximum frictional force F_max experienced by a shearing plate in contact with wet or dry granular material after the layer ...
A. Ruina, A.J. Liu, C. Marone, C. Marone, C. Scholz, C.H. Liu, D. Howell, D.M. Hanes, E. Aharonov, F. Radjai, G. Hähner, H.M. Jaeger, J. Krim, J. P. Gollub, J.-C. Géminard, J.C. Géminard, J.H. Dieterich, J.K. Morgan, J.K. Morgan, L. Bocquet, L. Vanel, M. Nakatani, M.E. Cates, O. Reynolds, P. Berthoud, P.A. Thompson, S. Nasuno, S. Nasuno, S. Nasuno, S.F. Edwards, S.L. Karner, T. Baumberger, W. Losert, Y. Zhang   +33 more
core   +2 more sources

Compaction dynamics of crunchy granular material

EPJ Web of Conferences, 2017
Compaction of brittle porous material leads to a wide variety of densification patterns. Static compaction bands occurs naturally in rocks or bones, and have important consequences in industry for the manufacturing of powder tablets or metallic foams for
Guillard François, Golshan Pouya, Shen Luming, Valdès Julio R., Einav Itai   +4 more
doaj   +1 more source

Granular Material Development Applied in an Experimental Section for Civil Engineering Purposes

Applied Sciences, 2020
In this study, a granular material (GM) derived from wastes generated in waste-to-energy plants was developed. Weathered bottom ash (WBA) and air pollution control (APC) ashes obtained from municipal solid waste incineration (MSWI) were used as raw ...
Jessica Giro-Paloma, Joan Formosa, Josep M. Chimenos   +2 more
doaj   +1 more source

Calculation of multilayer sieve classifiers for separating grained materials by size [PDF]

E3S Web of Conferences, 2021
From the standpoint of stochastic Poisson processes, the separation of granular materials by size on multi-tiered sieve classifiers is studied. Taking into account the selected separation scheme, a system of stochastic differential equations is drawn up ...
Akhmadiev Fail, Gizzyatov Renat, Nazipov Ilshat   +2 more
doaj   +1 more source

Operational characteristics of four metering systems for agricultural fertilizers and amendments Características de operação de quatro dosadores para a distribuição de fertilizantes e corretivos comerciais

Engenharia Agrícola, 2009
The use of fertilizers and solid amendments in agriculture generates special interest for their effect on crop productivity, as well as for their environmental impact.
Jesus H. Camacho-Tamayo, Angela M. Barbosa, Nancy M. Pérez, Fabio R. Leiva, Gonzalo A. Rodríguez   +4 more
doaj   +1 more source

Granule structure influences on force chain development in the slag medium

地质科技通报, 2022
The slag dumps formed by mining activities are irregular granular media. Their particle size gradations are complex and granule structures are unstable.The stress between particles is transferred through the dependently unstable force chain.
Minfeng Lu, Zhaohui Tang, Bo Chai, Ke Ning, Jiewen Zhu, Yi Fang   +5 more
doaj   +1 more source

A hydrodynamic model for granular material flows including segregation effects

EPJ Web of Conferences, 2017
The simulation of granular flows including segregation effects in large industrial processes using particle methods is accurate, but very time-consuming. To overcome the long computation times a macroscopic model is a natural choice. Therefore, we couple
Gilberg Dominik, Klar Axel, Steiner Konrad   +2 more
doaj   +1 more source

Pressure wave propagation in a shaken granular bed [PDF]

, 2005
Pressure waves in a granular material travel through particle contact points and are primarily transmitted by the "force chains" that carry most of the load in a granular medium.
Brennen, Christopher E., Hostler, Stephen R.   +1 more
core   +2 more sources

Viscoelasticity of granular materials

Mechanics 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

Theoretical and experimental study of the transport of granular materials by inclined vibratory conveyors [PDF]

, 1996
A theoretical and experimental study was made of the conveying speed with which granular materials are transported by vibratory conveyors. The basic assumption made is that the layer of granular material can be considered as a point mass.
Kruyt, Nicolaas P., Sloot, E.M., Sloot, E.M.   +2 more
core   +2 more sources