Experimental Study on Compression and Torsion Fracture within 3D Printed Cementation-Weak and Porosity-High Sandstones

Figure 9

Digital images under (a) initial stage, (b) torsion application stage, (c) peak torsion stage, (d) 22.5 s after peak torque stage, and (e) 39 s after peak torque stage.

(a)

(b)

(c)

(d)

(e)