Experimental and discrete element modeling on cracking behavior of sandstone containing a single oval flaw under uniaxial compression

In the rock engineering, it is very significant to focus on the failure mechanical behavior of rocks containing all kinds of flaws. In this research, the strength, deformation and crack evolution behavior of sandstone containing a single oval flaw under uniaxial compression were evaluated by experiment and numerical simulation using a two-dimension particle flow code (PFC2D). The experimental results show that the peak strength and elastic...