Faramarzi, Asaad, Harireche, Ouahid and Alani, Amir (2014) Representation of capillary forces in polydisperse granular assemblies in the pendular regime. In: Numerical Methods in Geotechnical Engineering. CRC Press, London, UK, pp. 363-366. ISBN 9781138001466

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Abstract

In this paper, the equations governing capillary forces between polydisperse spheres in the pendular regime are presented. These equations are adopted within the Laplace-Young framework using a Toroidal approximation of the liquid bridge geometry. Based on the numerical solution of the fundamental problem and a novel evolutionary computing technique (EPR), an analytical expression is developed for the prediction of capillary force. The analytical expression accounts for the effects of intrinsic parameters such as inter-particle separation distance, ratio of particle radii and liquid volume. Such a representation of capillary forces is shown to mimic the real behaviour with a good accuracy. The developed model can be implemented in discrete element computer simulations as it does not require any iterations to update contact forces at particle level.

Item Type:	Book Section
Identifier:	10.1201/b17017-66
Subjects:	Construction and engineering > Built environment Construction and engineering > Civil and structural engineering Construction and engineering
Depositing User:	Fabio Tosti
Date Deposited:	26 May 2016 10:38
Last Modified:	28 Aug 2021 07:20
URI:	https://repository.uwl.ac.uk/id/eprint/2152

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