Fig. 7
From: An approach to hydraulic fracture in geomaterials through a porous brittle damage material model
Sensitivity analysis of the laboratory test simulation on the tensile strength. Gray circles: \(T_c= 3~\hbox {MPa}\). Black circles: \(T_c= 4~\hbox {MPa}\). White circles: \(T_c= 5~\hbox {MPa}\). a Fracture surface versus time. b Fracture surface closeup at the time of the formation of the first set of faults. c Fracture volume versus time. d Fracture volume closeup at the time of the formation of the first set of faults