Influence of liquid bridges on the mechanical behaviour of polydisperse granular materials | Zendy

Soulié F. | Zendy; Cherblanc F. | Zendy; El Youssoufi M.S. | Zendy; Saix C. | Zendy

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Influence of liquid bridges on the mechanical behaviour of polydisperse granular materials

Author(s) -

Soulié F.,

Cherblanc F.,

El Youssoufi M.S.,

Saix C.

Publication year - 2006

Publication title -

international journal for numerical and analytical methods in geomechanics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.419

H-Index - 91

eISSN - 1096-9853

pISSN - 0363-9061

DOI - 10.1002/nag.476

Subject(s) - granular material , cohesion (chemistry) , discrete element method , capillary action , materials science , mechanics , particle (ecology) , composite material , physics , geology , oceanography , quantum mechanics

We investigate a polydisperse granular material in which the particle interactions are governed by a capillary force law. The cohesion force for a grain‐pair with unequal diameters is expressed as an explicit function of the inter‐particle distance and the volume of the liquid bridge. This analytical relation is validated by experiments on a reference material. Then, it is completed by a rupture criterion and cast in the form of a force law that accounts for solid contact, capillary force and rupture characteristics of a grain‐pair. Finally, in order to evaluate the influence of capillary cohesion on the macroscopic behaviour, radial and axial compression tests on cylindrical assemblies of wet particles are simulated using a 3D distinct element method. Copyright © 2005 John Wiley & Sons, Ltd.

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