Experimental Study on the Fracture Evolution Processof Rock-like Specimens Containing a Closed RoughJoint Based on 3D-Printing Technology

Figure 8

Effects of joint length on (a) peak strength, (b) peak strain, (c) elastic modulus, and (d) secant modulus of specimens, respectively (α = 60°).

(a)

(b)

(c)

(d)