Simulation and Experimental Study on the Discontinuous Dynamic Impact on Unidirectional Confined Coal-Rock Damage

Figure 6

Relationship between effective strain and impact velocity of coal rock. (a)  = 2.08 m/s. (b)  = 2.94 m/s. (c)  = 3.60 m/s. (d)  = 4.15 m/s. (e)  = 4.64 m/s. (f)  = 5.48 m/s.

(a)

(b)

(c)

(d)

(e)

(f)