Use of Acoustic Emission for the Detection of Brittle Rock Failure under Various Loading Rates

Figure 10

Failure mode of rock depending on the loading rate. (a) #2 (loading rate = 0.03 mm/min), (b) #4 (loading rate = 0.05 mm/min), (c) #6 (loading rate = 0.07 mm/min), and (d) #8 (loading rate = 0.09 mm/min).

(a)

(b)

(c)

(d)