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 | 2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology - Orlando, FL, United States of America Duration: 23 Apr 2006 → 27 Apr 2006 |
Conference
| Conference | 2006 AIChE Spring National Meeting - 5th World Congress on Particle Technology |
|---|---|
| Country | United States of America |
| City | Orlando, FL |
| Period | 23/04/06 → 27/04/06 |
Keywords
- Compaction
- Discrete element method
- Fine particle
- Jamming
Cite this
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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 conference › Paper › Other
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
UR - http://www.scopus.com/inward/record.url?scp=56749158484&partnerID=8YFLogxK
M3 - Paper
ER -