Crack Propagation and Fragmentation Characteristics of Single-Flawed Sandstone Samples under Different Loading Conditions

Figure 13

Relationship between crack propagation process and stress. (a) β = 0°. (b) β = 30°. (c) β = 45°. (d) β = 60°. (e) β = 90°.

(a)

(b)

(c)

(d)

(e)