Strength Characteristics and Failure Mechanism of Granite with Cross Cracks at Different Angles Based on DIC Method

Figure 4

Acoustic emission ringing count-time-axial stress diagram: (a) α = 45°, β = 0°; (b) α = 45°, β = 30°; (c) α = 45°, β = 45°; (d) α = 45°, β = 60°; (e) α = 45°, β = 90°.

(a)

(b)

(c)

(d)

(e)