Void ratio evolution inside shear bands in triaxial sand specimens studied by computed tomography

A study of strain localization in triaxial tests on sand, using computed tomography is reported. The inception and the development of the localization are detected and described, both qualitatively and quantitatively. The complex geometrical structures involved in the localization patterns are described and the local void ratio evolution in the localization zone(s) is determined. Dense and loose Hostun RF sand specimens were tested under a...