Experimental Study on Dynamic Tensile Mechanical Behavior and Fracture Mechanical Characteristics of Sandstone with a Single Prefabricated Fissure

Figure 5

Failure patterns of specimen at different fissure angles and impact pressures: (a) and θ = 0°, (b) and θ = 30°,(c) and θ = 45°, (d) and θ = 60°, (e) and θ = 90°, (f) and θ = 0°, (g) and θ = 30°,(h) and θ = 45°, (i) and θ = 60°, (j) and θ = 90°, (k) and θ = 0°, (l) and θ = 30°,(m) and θ = 45°, (n) and θ = 60°, and (o) and θ = 90°.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)

(j)

(k)

(l)

(m)

(n)

(o)