Skip to Main content Skip to Navigation
Book sections

Numerical Modeling of Multiphysics Couplings and Strain Localization

Abstract : This chapter summarizes the main observations on localized phenomena and proposes numerical tools to characterize localization processes. To deal with interactions occurring between the different phases of porous media, a regularization technique based on the second gradient model has been extended to multiphysic couplings. The chapter describes the regularization methods used to properly model the strain localization process. It presents the description of the coupled second gradient model in saturated conditions. A biaxial compression test is modeled in order to show the ability of the second gradient model to correctly represent the post‐peak behavior. The second gradient model is extended to unsaturated conditions. The coupled local second gradient model is developed for enriched continua including microstructure effects. The example of a gallery excavation is proposed to evidence the influence of hydromechanical couplings in saturated and unsaturated conditions on the strain localization process.
Complete list of metadata
Contributor : Panagiotis Kotronis <>
Submitted on : Tuesday, April 6, 2021 - 3:12:49 PM
Last modification on : Wednesday, April 7, 2021 - 3:09:11 AM


 Restricted access
To satisfy the distribution rights of the publisher, the document is embargoed until : jamais

Please log in to resquest access to the document


Distributed under a Creative Commons Attribution 4.0 International License




Frédéric Collin, Panagiotis Kotronis, Benoît Pardoen. Numerical Modeling of Multiphysics Couplings and Strain Localization. Ioannis Stefanou; Jean Sulem. Instabilities Modeling in Geomechanics, Wiley, pp.203-251, 2021, 9781789450002. ⟨10.1002/9781119755203.ch7⟩. ⟨hal-03187251⟩



Record views