Numerical Studies on the Failure Process of Heterogeneous Rock Material with Preexisting Fracture under Uniaxial Compression

Figure 14

Damage evolution of samples under uniaxial compression tests with various lengths (2a) of preexisting fracture. (a)  = 15 mm; (b)  = 20 mm; (c)  = 25 mm; (d)  = 30 mm; (e)  = 35 mm.

(a)

(b)

(c)

(d)

(e)