Accéder directement au contenu Accéder directement à la navigation
Nouvelle interface
Article dans une revue

Micro-scale experimental investigation of the swelling anisotropy of the Callovo-Oxfordian argillaceous rock

Abstract : An experimental study of the swelling anisotropy of the Callovo-Oxfordian argillaceous rock under hydration is presented. The investigation, which combines environmental scanning electron microscopy (ESEM) and digital image correlation techniques, has been carried out at the micrometric scale of the composite microstructure of the rock. Specimens were hydrated in the ESEM over a wide range of relative humidity and observations conducted on two planes: plane 1 parallel to the bedding plane, and plane 2 perpendicular to it. The observations reveal that the local swelling (which can be quantified at a local gauge length of about 5 µm) is strongly anisotropic in both planes. The global swelling, measured over areas of about 500 µm in width, is also clearly anisotropic in plane 2 (with major swelling direction normal to the bedding plane), but not in plane 1. The global isotropy in plane 1 arises from the uniform distribution of the orientation of anisotropic local strains, while the anisotropic swelling in plane 2 is due to a preferred local orientation.
Type de document :
Article dans une revue
Liste complète des métadonnées

https://hal-enpc.archives-ouvertes.fr/hal-00946111
Contributeur : Ist Enpc Connectez-vous pour contacter le contributeur
Soumis le : lundi 25 avril 2022 - 16:54:22
Dernière modification le : samedi 22 octobre 2022 - 04:57:33
Archivage à long terme le : : mardi 26 juillet 2022 - 19:33:19

Fichier

wang2013.pdf
Fichiers produits par l'(les) auteur(s)

Licence


Distributed under a Creative Commons Paternité - Pas d'utilisation commerciale 4.0 International License

Identifiants

Citation

Linlin Wang, Michel Bornert, Serge Chanchole, Diansen Yang, Eva Héripré, et al.. Micro-scale experimental investigation of the swelling anisotropy of the Callovo-Oxfordian argillaceous rock. Clay Minerals, 2013, 48 (2), pp.391-402. ⟨10.1180/claymin.2013.048.2.17⟩. ⟨hal-00946111⟩

Partager

Métriques

Consultations de la notice

324

Téléchargements de fichiers

12