DEM simulation of the unconfined compaction of fine powders

R. Y. Yang; R. P. Zou; A. B. Yu; S. K. Choi

DEM simulation of the unconfined compaction of fine powders

R. Y. Yang, R. P. Zou, A. B. Yu, S. K. Choi

Research output: Contribution to conference › Paper

Abstract

Compaction of fine particles was studied by numerical simulation based on the discrete element method. The evolution of force structures during compaction was analysed in terms of the mean value, distribution and orientation of the normal contacted force. The large "backbone" forces were identified and the analysis of these forces was shown to be able to provide more insight into the force structure. Depending on the initial packing density prior to compaction, two or three transition regions could be observed in the relation between the packing density and the logarithm of pressure. Two critical packing densities were identified, which were related to the jamming states corresponding to the geometrically stable and mechanically stable packing structures.

Original language	English
Publication status	Published - 1 Dec 2006
Externally published	Yes
Event	World Congress on Particle Technology (WCPT) 2006 - Orlando, United States of America Duration: 23 Apr 2006 → 27 Apr 2006 Conference number: 5th

Conference

Conference	World Congress on Particle Technology (WCPT) 2006
Abbreviated title	WCPT 2006
Country	United States of America
City	Orlando
Period	23/04/06 → 27/04/06

Keywords

Compaction
Discrete element method
Fine particle
Jamming

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Link to publication in Scopus

Cite this

@conference{321d657e7c484d5ea90f2015e0dbbea5,

title = "DEM simulation of the unconfined compaction of fine powders",

abstract = "Compaction of fine particles was studied by numerical simulation based on the discrete element method. The evolution of force structures during compaction was analysed in terms of the mean value, distribution and orientation of the normal contacted force. The large {"}backbone{"} forces were identified and the analysis of these forces was shown to be able to provide more insight into the force structure. Depending on the initial packing density prior to compaction, two or three transition regions could be observed in the relation between the packing density and the logarithm of pressure. Two critical packing densities were identified, which were related to the jamming states corresponding to the geometrically stable and mechanically stable packing structures.",

keywords = "Compaction, Discrete element method, Fine particle, Jamming",

author = "Yang, {R. Y.} and Zou, {R. P.} and Yu, {A. B.} and Choi, {S. K.}",

year = "2006",

month = dec,

day = "1",

language = "English",

note = "World Congress on Particle Technology (WCPT) 2006, WCPT 2006 ; Conference date: 23-04-2006 Through 27-04-2006",

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TY - CONF

T1 - DEM simulation of the unconfined compaction of fine powders

AU - Yang, R. Y.

AU - Zou, R. P.

AU - Yu, A. B.

AU - Choi, S. K.

N1 - Conference code: 5th

PY - 2006/12/1

Y1 - 2006/12/1

N2 - Compaction of fine particles was studied by numerical simulation based on the discrete element method. The evolution of force structures during compaction was analysed in terms of the mean value, distribution and orientation of the normal contacted force. The large "backbone" forces were identified and the analysis of these forces was shown to be able to provide more insight into the force structure. Depending on the initial packing density prior to compaction, two or three transition regions could be observed in the relation between the packing density and the logarithm of pressure. Two critical packing densities were identified, which were related to the jamming states corresponding to the geometrically stable and mechanically stable packing structures.

AB - Compaction of fine particles was studied by numerical simulation based on the discrete element method. The evolution of force structures during compaction was analysed in terms of the mean value, distribution and orientation of the normal contacted force. The large "backbone" forces were identified and the analysis of these forces was shown to be able to provide more insight into the force structure. Depending on the initial packing density prior to compaction, two or three transition regions could be observed in the relation between the packing density and the logarithm of pressure. Two critical packing densities were identified, which were related to the jamming states corresponding to the geometrically stable and mechanically stable packing structures.

KW - Compaction

KW - Discrete element method

KW - Fine particle

KW - Jamming

UR - http://www.scopus.com/inward/record.url?scp=56749158484&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:56749158484

T2 - World Congress on Particle Technology (WCPT) 2006

Y2 - 23 April 2006 through 27 April 2006

ER -