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Hydro-mechanical coupling and strain localization in saturated porous media
Experimental studies of Strain Localization in soils and rocks have been performed extensively for the last 20 years. A part of these studies have been devoted to the response of specimens submitted to tests in undrained situation. It was shown that shear banding can take place in both contractive and dilative specimens, with some special features due to the coupling between the granular skeleton and the pore fluid. In the present paper, the relevance of the bifurcation criterion in shear band mode in the case of hydro-mechanical coupling is assessed by numerical study of the response of the constitutive model CLoE-the Hypoplastic model developed in L3S-Grenoble- in two kinds of numerical integration: local, i.e. at the material point level and global, i.e. in boundary value problems analyzed by finite elements.
Hydro-mechanical coupling and strain localization in saturated porous media
Experimental studies of Strain Localization in soils and rocks have been performed extensively for the last 20 years. A part of these studies have been devoted to the response of specimens submitted to tests in undrained situation. It was shown that shear banding can take place in both contractive and dilative specimens, with some special features due to the coupling between the granular skeleton and the pore fluid. In the present paper, the relevance of the bifurcation criterion in shear band mode in the case of hydro-mechanical coupling is assessed by numerical study of the response of the constitutive model CLoE-the Hypoplastic model developed in L3S-Grenoble- in two kinds of numerical integration: local, i.e. at the material point level and global, i.e. in boundary value problems analyzed by finite elements.
Hydro-mechanical coupling and strain localization in saturated porous media
Desrues, Jacques (Autor:in)
Revue Européenne de Génie Civil ; 9 ; 619-634
01.06.2005
16 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
failure , strain localization , shear bands , drainage , experiments , biaxial test , hydro-mechanical coupling , numerical simulation , constitutive model , finite elements , rupture , localisation de la déformation , bandes de cisaillement , essai biaxial , couplage hydro-mécanique , modélisation numérique , lois de comportement , éléments finis
Multiscale modelling of hydro-mechanical coupling in porous media
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