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

Figure 12

Evolution process of strain fields of specimens containing closed 3D-printing rough joints with different joint lengths under uniaxial compression (α = 60°). (a) Specimen S1-1# (l = 20.0 mm). (b) Specimen S2-1# (l = 27.1 mm). (c) Specimen S3-2# (l = 30.6 mm). (d) Specimen S4-1# (l = 35.6 mm). (e) Specimen T60-2# (l = 40.0 mm).

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