Modeling of deformation and localized failure in anisotropic rocks

This paper deals with description of the deformation process in argillaceous rocks that display a strong inherent anisotropy. Both, the homogeneous and the localized deformation modes are considered. The effects of anisotropy are incorporated by invoking the microstructure tensor approach. The strain localization is assumed to be associated with formation of a macrocrack the orientation of which is defined using the critical plane approach. The …