Effect of cohesive force on the formation of a sandpile

Kejun J Dong; Ruiping Zou; Kaiwei Chu; Runyu Yang; Aibing Yu

doi:10.1063/1.4812014

Effect of cohesive force on the formation of a sandpile

Kejun J Dong
, Ruiping Zou
, Kaiwei Chu
, Runyu Yang
, Aibing Yu

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

8 Citations (Scopus)

Abstract

This paper presents a numerical study on the piling processes of mono-sized wet particles by the discrete element method (DEM). The capillary force between particles due to liquid bridge is implemented in an existing DEM model. The effects of moisture content on the repose angle and structure of a pile are studied by a series of controlled numerical experiments. It is confirmed that the structure of a pile is similar to that of a packing for cohesive particles. Moreover, the averaged local porosity and repose angle have similar changes with the moisture content and can be linearly correlated. Therefore, the relationship between the repose angle and the cohesive force can be established based on the previous correlation between the porosity and the force ratio of the cohesive force to gravity developed in the packing of cohesive particles.

Original language	English
Title of host publication	Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media
Editors	Aibing Yu, Kejun Dong, Runyu Yang, Stefan Luding
Place of Publication	Melville NY USA
Publisher	American Institute of Physics
Pages	646 - 649
Number of pages	4
Volume	1542
ISBN (Print)	9780735411661
DOIs	https://doi.org/10.1063/1.4812014
Publication status	Published - 2013
Externally published	Yes
Event	Powders and Grains 2013 - Sydney, Australia Duration: 8 Jul 2013 → 12 Jul 2013 Conference number: 7th http://www.pg2013.unsw.edu.au/ http://www.proceedings.com/21017.html https://pubs.aip.org/aip/acp/issue/1542/1

Conference

Conference	Powders and Grains 2013
Country/Territory	Australia
City	Sydney
Period	8/07/13 → 12/07/13
Internet address	http://www.pg2013.unsw.edu.au/ http://www.proceedings.com/21017.html https://pubs.aip.org/aip/acp/issue/1542/1

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10.1063/1.4812014

Cite this

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title = "Effect of cohesive force on the formation of a sandpile",

abstract = "This paper presents a numerical study on the piling processes of mono-sized wet particles by the discrete element method (DEM). The capillary force between particles due to liquid bridge is implemented in an existing DEM model. The effects of moisture content on the repose angle and structure of a pile are studied by a series of controlled numerical experiments. It is confirmed that the structure of a pile is similar to that of a packing for cohesive particles. Moreover, the averaged local porosity and repose angle have similar changes with the moisture content and can be linearly correlated. Therefore, the relationship between the repose angle and the cohesive force can be established based on the previous correlation between the porosity and the force ratio of the cohesive force to gravity developed in the packing of cohesive particles.",

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language = "English",

isbn = "9780735411661",

volume = "1542",

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editor = "Aibing Yu and Kejun Dong and Runyu Yang and Stefan Luding",

booktitle = "Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media",

publisher = "American Institute of Physics",

address = "United States of America",

note = "Powders and Grains 2013 ; Conference date: 08-07-2013 Through 12-07-2013",

url = "http://www.pg2013.unsw.edu.au/, http://www.proceedings.com/21017.html, https://pubs.aip.org/aip/acp/issue/1542/1",

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Dong, KJ, Zou, R, Chu, K, Yang, R & Yu, A 2013, Effect of cohesive force on the formation of a sandpile. in A Yu, K Dong, R Yang & S Luding (eds), Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media. vol. 1542, American Institute of Physics, Melville NY USA, pp. 646 - 649, Powders and Grains 2013, Sydney, New South Wales, Australia, 8/07/13. https://doi.org/10.1063/1.4812014

Effect of cohesive force on the formation of a sandpile. / Dong, Kejun J; Zou, Ruiping; Chu, Kaiwei et al.
Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media. ed. / Aibing Yu; Kejun Dong; Runyu Yang; Stefan Luding. Vol. 1542 Melville NY USA: American Institute of Physics, 2013. p. 646 - 649.

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

TY - GEN

T1 - Effect of cohesive force on the formation of a sandpile

AU - Dong, Kejun J

AU - Zou, Ruiping

AU - Chu, Kaiwei

AU - Yang, Runyu

AU - Yu, Aibing

N1 - Conference code: 7th

PY - 2013

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N2 - This paper presents a numerical study on the piling processes of mono-sized wet particles by the discrete element method (DEM). The capillary force between particles due to liquid bridge is implemented in an existing DEM model. The effects of moisture content on the repose angle and structure of a pile are studied by a series of controlled numerical experiments. It is confirmed that the structure of a pile is similar to that of a packing for cohesive particles. Moreover, the averaged local porosity and repose angle have similar changes with the moisture content and can be linearly correlated. Therefore, the relationship between the repose angle and the cohesive force can be established based on the previous correlation between the porosity and the force ratio of the cohesive force to gravity developed in the packing of cohesive particles.

AB - This paper presents a numerical study on the piling processes of mono-sized wet particles by the discrete element method (DEM). The capillary force between particles due to liquid bridge is implemented in an existing DEM model. The effects of moisture content on the repose angle and structure of a pile are studied by a series of controlled numerical experiments. It is confirmed that the structure of a pile is similar to that of a packing for cohesive particles. Moreover, the averaged local porosity and repose angle have similar changes with the moisture content and can be linearly correlated. Therefore, the relationship between the repose angle and the cohesive force can be established based on the previous correlation between the porosity and the force ratio of the cohesive force to gravity developed in the packing of cohesive particles.

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DO - 10.1063/1.4812014

M3 - Conference Paper

SN - 9780735411661

VL - 1542

SP - 646

EP - 649

BT - Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media

A2 - Yu, Aibing

A2 - Dong, Kejun

A2 - Yang, Runyu

A2 - Luding, Stefan

PB - American Institute of Physics

CY - Melville NY USA

T2 - Powders and Grains 2013

Y2 - 8 July 2013 through 12 July 2013

ER -

Effect of cohesive force on the formation of a sandpile

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