4D Mapping of the Fracture Evolution in a Printed Gypsum-Like Core by Using X-Ray CT Scanning

Figure 7

Internal crack evolution of the 3D printing gypsum specimen with penny-shaped flaw. (a) = 1.54 MPa,  = 0.015, and c = 2.26 MPa; (b) = 2.08 MPa,  = 0.024, and c = 2.26 MPa; (c) = 2.18 MPa,  = 0.040, and c = 2.26 MPa; (d) = 0.52 MPa,  = 0.046, and c = 2.26 MPa.

(a)

(b)

(c)

(d)