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 conferencePaperOther

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 languageEnglish
Publication statusPublished - 1 Dec 2006
Externally publishedYes
Event2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology - Orlando, FL, United States of America
Duration: 23 Apr 200627 Apr 2006

Conference

Conference2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology
CountryUnited States of America
CityOrlando, FL
Period23/04/0627/04/06

Keywords

  • Compaction
  • Discrete element method
  • Fine particle
  • Jamming

Cite this

Yang, R. Y., Zou, R. P., Yu, A. B., & Choi, S. K. (2006). DEM simulation of the unconfined compaction of fine powders. Paper presented at 2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology, Orlando, FL, United States of America.
Yang, R. Y. ; Zou, R. P. ; Yu, A. B. ; Choi, S. K. / DEM simulation of the unconfined compaction of fine powders. Paper presented at 2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology, Orlando, FL, United States of America.
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year = "2006",
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note = "2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology ; Conference date: 23-04-2006 Through 27-04-2006",

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Yang, RY, Zou, RP, Yu, AB & Choi, SK 2006, 'DEM simulation of the unconfined compaction of fine powders' Paper presented at 2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology, Orlando, FL, United States of America, 23/04/06 - 27/04/06, .

DEM simulation of the unconfined compaction of fine powders. / Yang, R. Y.; Zou, R. P.; Yu, A. B.; Choi, S. K.

2006. Paper presented at 2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology, Orlando, FL, United States of America.

Research output: Contribution to conferencePaperOther

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.

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

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M3 - Paper

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Yang RY, Zou RP, Yu AB, Choi SK. DEM simulation of the unconfined compaction of fine powders. 2006. Paper presented at 2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology, Orlando, FL, United States of America.