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Numerical investigation of granular interfaces kinematics

Numerical investigation of granular interfaces kinematics
Numerical investigation of granular interfaces kinematics
The numerical method of Contact Dynamics is used in order to simulate the Ring Simple Shear Experiment of a granular medium model (Schneebeli material). The numerical results on the discrete medium are then post-processed in order to construct the displacement fields of an equivalent continuum, and the formation of a shear interface layer is observed. The existence and magnitude of individual grain rotations imply that the equivalent continuum could be a Cosserat continuum in this case, at least for the material inside the interface layer. Porosity profiles are presented, showing the progressive loosening of the granular medium, while its dilation is also measured.
granular materials, micromechanical simulation, contact dynamics, cosserat continuum, shear interface, couette flow
1082-5010
305-324
Zervos, A.
9e60164e-af2c-4776-af7d-dfc9a454c46e
Vardoulakis, I.
12908544-3fc4-4ea6-9068-89ff3e532ff0
Jean, M.
72ab615a-0fc5-44cd-b3c2-5c0f29f82a34
Lerat, P.
9431c1e9-5081-4d3a-a31b-407a2da47fd7
Zervos, A.
9e60164e-af2c-4776-af7d-dfc9a454c46e
Vardoulakis, I.
12908544-3fc4-4ea6-9068-89ff3e532ff0
Jean, M.
72ab615a-0fc5-44cd-b3c2-5c0f29f82a34
Lerat, P.
9431c1e9-5081-4d3a-a31b-407a2da47fd7

Zervos, A., Vardoulakis, I., Jean, M. and Lerat, P. (2000) Numerical investigation of granular interfaces kinematics. Mechanics of Cohesive Frictional Materials, 5 (4), 305-324. (doi:10.1002/(SICI)1099-1484(200005)5:4<305::AID-CFM96>3.0.CO;2-W).

Record type: Article

Abstract

The numerical method of Contact Dynamics is used in order to simulate the Ring Simple Shear Experiment of a granular medium model (Schneebeli material). The numerical results on the discrete medium are then post-processed in order to construct the displacement fields of an equivalent continuum, and the formation of a shear interface layer is observed. The existence and magnitude of individual grain rotations imply that the equivalent continuum could be a Cosserat continuum in this case, at least for the material inside the interface layer. Porosity profiles are presented, showing the progressive loosening of the granular medium, while its dilation is also measured.

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More information

Published date: May 2000
Keywords: granular materials, micromechanical simulation, contact dynamics, cosserat continuum, shear interface, couette flow

Identifiers

Local EPrints ID: 75106
URI: http://eprints.soton.ac.uk/id/eprint/75106
DOI: doi:10.1002/(SICI)1099-1484(200005)5:4<305::AID-CFM96>3.0.CO;2-W
ISSN: 1082-5010
PURE UUID: 591ad885-92cc-480b-8698-f59bd95ccbba
ORCID for A. Zervos: ORCID iD orcid.org/0000-0002-2662-9320

Catalogue record

Date deposited: 11 Mar 2010
Last modified: 14 Mar 2024 02:48

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Contributors

Author: A. Zervos ORCID iD
Author: I. Vardoulakis
Author: M. Jean
Author: P. Lerat

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