Application des approches d'homogénéisation à l'étude des propriétés thermo-hydro-mécaniques des roches. Application aux argilites

Abstract : The present work deals with the linear and non-linear thermo-hydro-mechanical behaviour of porous rocks such as the argillite by the multiscale modelling approach. Based on microstructure observations, a conceptual model was proposed. In this model, the representative elementary volume of a heterogeneous medium is composed of an argillaceous matrix containing spherical inclusions of minerals quartz and calcite and ellipsoidal inclusions representing the pore space. In a first step, the process of modelling has been exploited by determining the isotropic and transversely isotropic effective properties of the argillite: thermal conductivity and thermo-hydro-mechanical properties. Furthermore, many numerical studies have highlighted the influence of the morphology of the pore space, of the mineralogy and of the estimate schemes to the predictive results. In a second step, we modelled the non linear mechanical behaviour (elasto-plastic, elasto-viscoplastic) of argillaceous rocks. The comparison between numerical simulations and available experimental results (triaxial compression test, creep test) confirmed the validation of the model developed
Complete list of metadatas

Cited literature [135 references]  Display  Hide  Download

https://hal.univ-lorraine.fr/tel-01748703
Contributor : Thèses Ul <>
Submitted on : Thursday, March 29, 2018 - 11:46:40 AM
Last modification on : Sunday, May 19, 2019 - 10:04:04 PM
Long-term archiving on : Friday, September 14, 2018 - 8:07:35 AM

File

2008_DO_D_P.pdf
Files produced by the author(s)

Identifiers

  • HAL Id : tel-01748703, version 1

Collections

Citation

Duc Phi Do. Application des approches d'homogénéisation à l'étude des propriétés thermo-hydro-mécaniques des roches. Application aux argilites. Autre. Institut National Polytechnique de Lorraine, 2008. Français. ⟨NNT : 2008INPL091N⟩. ⟨tel-01748703⟩

Share

Metrics

Record views

36

Files downloads

89