Abstract
The development of a new true triaxial cell which contains a device to observe the specimen under loading for full field measurement, has allowed studying the emergence of strain localisation in rock specimens. Two porous rocks have been investigated, a sandstone and a clayey rock. Both show similarities in the strain localization process, with an early diffuse strain localization pattern well before the stress peak that evolves progressively toward a reduced number of shear bands pattern. This final pattern, being usually reported in the literature, is associated to the stress peak and initiation of strain softening.
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Bésuelle, P., Lanatà, P. (2017). Emergence of Strain Localization in Porous Rocks Characterized by Full-Field Measurement in Plane Strain Condition. In: Papamichos, E., Papanastasiou, P., Pasternak, E., Dyskin, A. (eds) Bifurcation and Degradation of Geomaterials with Engineering Applications. IWBDG 2017. Springer Series in Geomechanics and Geoengineering. Springer, Cham. https://doi.org/10.1007/978-3-319-56397-8_4
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DOI: https://doi.org/10.1007/978-3-319-56397-8_4
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