Microstructural effects on strain localization in a multiscale model for hydro-mechanical coupling

Boundary value problems; Constitutive relations; Hydromechanical coupling; Micro-structural effects; Micromechanical model; Multi-scale Modeling; Representative elementary volume; Strain localization problem; Strain localizations; Finite element method

Abstract :

[en] The formulation and implementation of a double-scale finite element model for hydro-mechanical coupling in the framework of the finite element squared method has allowed studying macroscale boundary value problems in a poromechanical continuum. The macroscale constitutive relations are directly derived from the micromechanical interaction between fluid and solid microstructure, captured in representative elementary volumes. The application of this model in the simulation of a biaxial test and a gallery excavation problem is presented here to give examples of the model in strain localization problems. While using simple micromechanical models, the results demonstrate the ability of the model to provide complex macroscale material behaviour, that controls the initiation and development of the strain localization. © Springer International Publishing AG 2017.

Disciplines :

Civil engineering

Author, co-author :

van den Eijnden, A. P.; Section of Geo-Engineering, Faculty of Civil Engineering and Geosciences, Delft University of Technology, Delft, Netherlands

Bésuelle, P.; Université Grenoble Alpes, CNRS, 3SR, Grenoble, 38000, France

Collin, Frédéric ; Université de Liège - ULiège > Département ArGEnCo > Géotechnique

Chambon, R.; Université Grenoble Alpes, 3SR, Grenoble, 38000, France

Language :

English

Title :

Microstructural effects on strain localization in a multiscale model for hydro-mechanical coupling

Publication date :

2017

Event name :

International Workshop On Bifurcation and Degradation in Geomaterials

Event date :

2017

Audience :

International

Journal title :

Springer Series in Geomechanics and Geoengineering

ISSN :

1866-8755

Publisher :

Springer Verlag

Issue :

191289

Pages :

219-224

Peer reviewed :

Peer reviewed

Available on ORBi :

since 26 November 2020

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Bibliography

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