Title: A micromechanical numerical modelling approach for the homogenisation of grouted sands

Authors: V.U. Quoc Huy, Fatiha Bouchelaghem, Ben Hamida Abdelwahed

Addresses: UPMC Univ Paris 06, UMR 7190, Institut Jean Le Rond d'Alembert, F-75005 Paris, France; CNRS, UMR 7190, Institut Jean Le Rond d'Alembert, F-75005 Paris, France. ' UPMC Univ Paris 06, UMR 7190, Institut Jean Le Rond d'Alembert, F-75005 Paris, France; CNRS, UMR 8535 LMT-Cachan, 61 av. du President Wilson, F-94230 Cachan, France. ' UPMC Univ Paris 06, UMR 7190, Institut Jean Le Rond d'Alembert, F-75005 Paris, France; CNRS, UMR 7190, Institut Jean Le Rond d'Alembert, F-75005 Paris, France

Abstract: The paper presented deals with the investigation of the mechanical behaviour of sands grouted with a micro-fine cement grout. Contrary to most existing works on cemented or grouted sands, which rely on a macroscopic framework to identify the behaviour of such composite granular media from macroscopic triaxial tests, a multiscale modelling approach is retained in the present work based on the homogenisation method of periodic media. The first part of the work is dedicated to the study of the effect of the elastic characteristics of the constituents and of the grout saturation within the void space on the elastic behaviour of the grouted sand. The second part addresses the non-linear behaviour of the equivalent material by taking into account the damage behaviour of the grout.

Keywords: cemented sands; grouted sands; periodic media homogenisation; finite element method; FEM; linear elasticity; damage behaviour; multiscale modelling; micromechanics; mechanical behaviour; elastic behaviour.

DOI: 10.1504/IJCAT.2009.022704

International Journal of Computer Applications in Technology, 2009 Vol.34 No.1, pp.72 - 82

Published online: 25 Jan 2009 *

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