Abstract
The paper concerns a study of strain localization in a sandstone. At first, the material properties and the experimental device are described. The experimental method for detecting strain localization is based on multiple measurements of strains and displacements. By comparisons, these measurements give indications on a strain inhomogeneity. First tests have been performed on cylindrical samples and the results shown that the procedure is not systematically efficient for this kind of experiments. Prismatic samples are then used. In order to control the localization initiation and to follow up the shear banding the last tests are performed on prismatic samples containing a little hole. The shear bands characteristics (onset, orientation, width) are given for all these tests on prismatic sample. Their variation with confining pressure is emphasized. Finally, some details on the deformation mechanisms inside the bands are provided by visual and microscopic observations.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Rock Mechanics and Mining Sciences
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
