Acoustic Emission Response Characteristics of Anthracitic Coal under Uniaxial Compression

Figure 12

Relationship between AE event, stress, and time (“count” represents AE event count and “cumulative” represents AE cumulative event count). (a) Coal sample no. 0. (b) Coal sample no. 2. (c) Coal sample no. 4. (d) Coal sample no. 5.

(a)

(b)

(c)

(d)