Effect of friction and cohesion on anisotropy in quasi-static granular materials under shear

A. Singh; V. Magnanimo; S. Luding

doi:10.1063/1.4812023

Effect of friction and cohesion on anisotropy in quasi-static granular materials under shear

A. Singh, V. Magnanimo, S. Luding

Faculty of Engineering Technology

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

13 Citations (Scopus)

104 Downloads (Pure)

Abstract

We study the effect of particle friction and cohesion on the steady-state shear stress and the contact anisotropy of a granular assembly sheared in a split-bottom ring shear cell. For non-cohesive frictional materials, the critical state shear stress first increases and then saturates with friction. The contact number density is found to decrease monotonically, while the anisotropy of the contact network saturates after an initial increase. For cohesive powders, the relation between shear stress and confining pressure becomes non-linear. Interestingly the contact number density stays almost unaffected, while the structural anisotropy decreases with increasing cohesion, hinting at a redistribution of the network with almost constant contact number density.

Original language	English
Title of host publication	Powders and Grains 2013
Subtitle of host publication	Proceedings of the 7th International Conference on Micromechanics of Granular Media
Editors	Aibing Yu, Kejun Dong, Runyu Yang, Stefan Luding
Publisher	American Institute of Physics
Pages	682-685
ISBN (Print)	978-0-7354-1166-1
DOIs	https://doi.org/10.1063/1.4812023
Publication status	Published - 8 Jul 2013
Event	7th International Conference on Micromechanics of Granular Media, Powders and Grains 2013 - Sydney, Australia Duration: 8 Jul 2013 → 12 Jul 2013 Conference number: 7 http://www.pg2013.unsw.edu.au/

Publication series

Name	AIP Conference Proceedings
Publisher	AIP Publishing LLC
Volume	1542
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	7th International Conference on Micromechanics of Granular Media, Powders and Grains 2013
Abbreviated title	Powders & Grains
Country/Territory	Australia
City	Sydney
Period	8/07/13 → 12/07/13
Internet address	http://www.pg2013.unsw.edu.au/

Keywords

Friction
Anisotropy
Fabric
Macroscopic friction

Access to Document

10.1063/1.4812023

Singh2013effectFinal published version, 149 KBLicence: CC BY

Cite this

Singh, A., Magnanimo, V., & Luding, S. (2013). Effect of friction and cohesion on anisotropy in quasi-static granular materials under shear. 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 (pp. 682-685). (AIP Conference Proceedings; Vol. 1542). American Institute of Physics. https://doi.org/10.1063/1.4812023

Singh, A. ; Magnanimo, V. ; Luding, S. / Effect of friction and cohesion on anisotropy in quasi-static granular materials under shear. Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media. editor / Aibing Yu ; Kejun Dong ; Runyu Yang ; Stefan Luding. American Institute of Physics, 2013. pp. 682-685 (AIP Conference Proceedings).

@inproceedings{3add1ed755cb41ce9c3602ef3adea40f,

title = "Effect of friction and cohesion on anisotropy in quasi-static granular materials under shear",

abstract = "We study the effect of particle friction and cohesion on the steady-state shear stress and the contact anisotropy of a granular assembly sheared in a split-bottom ring shear cell. For non-cohesive frictional materials, the critical state shear stress first increases and then saturates with friction. The contact number density is found to decrease monotonically, while the anisotropy of the contact network saturates after an initial increase. For cohesive powders, the relation between shear stress and confining pressure becomes non-linear. Interestingly the contact number density stays almost unaffected, while the structural anisotropy decreases with increasing cohesion, hinting at a redistribution of the network with almost constant contact number density.",

keywords = "Friction, Anisotropy, Fabric, Macroscopic friction",

author = "A. Singh and V. Magnanimo and S. Luding",

year = "2013",

month = jul,

day = "8",

doi = "10.1063/1.4812023",

language = "English",

isbn = "978-0-7354-1166-1",

series = "AIP Conference Proceedings",

publisher = "American Institute of Physics",

pages = "682--685",

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

booktitle = "Powders and Grains 2013",

address = "United States",

note = "7th International Conference on Micromechanics of Granular Media, Powders and Grains 2013, Powders & Grains ; Conference date: 08-07-2013 Through 12-07-2013",

url = "http://www.pg2013.unsw.edu.au/",

}

Singh, A, Magnanimo, V & Luding, S 2013, Effect of friction and cohesion on anisotropy in quasi-static granular materials under shear. 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. AIP Conference Proceedings, vol. 1542, American Institute of Physics, pp. 682-685, 7th International Conference on Micromechanics of Granular Media, Powders and Grains 2013, Sydney, New South Wales, Australia, 8/07/13. https://doi.org/10.1063/1.4812023

Effect of friction and cohesion on anisotropy in quasi-static granular materials under shear. / Singh, A.; Magnanimo, V.; Luding, S.
Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media. ed. / Aibing Yu; Kejun Dong; Runyu Yang; Stefan Luding. American Institute of Physics, 2013. p. 682-685 (AIP Conference Proceedings; Vol. 1542).

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

TY - GEN

T1 - Effect of friction and cohesion on anisotropy in quasi-static granular materials under shear

AU - Singh, A.

AU - Magnanimo, V.

AU - Luding, S.

N1 - Conference code: 7

PY - 2013/7/8

Y1 - 2013/7/8

N2 - We study the effect of particle friction and cohesion on the steady-state shear stress and the contact anisotropy of a granular assembly sheared in a split-bottom ring shear cell. For non-cohesive frictional materials, the critical state shear stress first increases and then saturates with friction. The contact number density is found to decrease monotonically, while the anisotropy of the contact network saturates after an initial increase. For cohesive powders, the relation between shear stress and confining pressure becomes non-linear. Interestingly the contact number density stays almost unaffected, while the structural anisotropy decreases with increasing cohesion, hinting at a redistribution of the network with almost constant contact number density.

AB - We study the effect of particle friction and cohesion on the steady-state shear stress and the contact anisotropy of a granular assembly sheared in a split-bottom ring shear cell. For non-cohesive frictional materials, the critical state shear stress first increases and then saturates with friction. The contact number density is found to decrease monotonically, while the anisotropy of the contact network saturates after an initial increase. For cohesive powders, the relation between shear stress and confining pressure becomes non-linear. Interestingly the contact number density stays almost unaffected, while the structural anisotropy decreases with increasing cohesion, hinting at a redistribution of the network with almost constant contact number density.

KW - Friction

KW - Anisotropy

KW - Fabric

KW - Macroscopic friction

U2 - 10.1063/1.4812023

DO - 10.1063/1.4812023

M3 - Conference contribution

SN - 978-0-7354-1166-1

T3 - AIP Conference Proceedings

SP - 682

EP - 685

BT - Powders and Grains 2013

A2 - Yu, Aibing

A2 - Dong, Kejun

A2 - Yang, Runyu

A2 - Luding, Stefan

PB - American Institute of Physics

T2 - 7th International Conference on Micromechanics of Granular Media, Powders and Grains 2013

Y2 - 8 July 2013 through 12 July 2013

ER -

Singh A, Magnanimo V , Luding S. Effect of friction and cohesion on anisotropy in quasi-static granular materials under shear. In Yu A, Dong K, Yang R, Luding S, editors, Powders and Grains 2013: Proceedings of the 7th International Conference on Micromechanics of Granular Media. American Institute of Physics. 2013. p. 682-685. (AIP Conference Proceedings). doi: 10.1063/1.4812023

Effect of friction and cohesion on anisotropy in quasi-static granular materials under shear

Abstract

Publication series

Conference

Keywords

Access to Document

Fingerprint

Cite this