Alneasan, Mahmoud, Mahmoud Behnia, and Raheb Bagherpour. "Frictional crack initiation and propagation in rocks under compressive loading." Theoretical and Applied Fracture Mechanics 97 (2018): 189-203.

Crack initiation and propagation in a brittle material such as a rock are affected by the friction between crack surfaces. Choosing an appropriate fracture criterion for frictional crack surfaces plays an important role in determining fracture parameters. To this end, a two-dimensional crack propagation code (TDCPC) was developed in this study based on the displacement discontinuity method (DDM) to predict the crack propagation path under the effect of friction. In this study, three classes of fracture criteria were defined: (1) classical fracture criteria (maximum tangential stress criterion, minimum strain energy density criterion, and maximum strain energy release rate criterion) under mixed mode loading without the effect of friction (CFC-I-II), (2) classical fracture criteria under the pure mode II (shear fracturing) without the effect of friction (CFC-II), and (3) the Swedlow criterion which takes into account the effect of friction … Journal Papers