Study on Fracture Initiation and Propagation in a Brazilian Disc with a Preexisting Crack by Digital Image Correlation Method

Table 2

Crack propagation and failure patterns for different inclination angles β ( = 15 mm).

Specimen number	(a)	(b)	(c)	(d)	(e)
M15-1-0°
M15-2-18°
M15-3-36°
M15-4-54°
M15-5-72°

Note. In the specimen number, M means marble, the first number means the length of the preexisting crack, the second number means the serial number, and the third number represents the inclination angle.