Acoustic Emission Simulation on Coal Specimen Subjected to Cyclic Loading

Table 5

Test conditions and results of coal specimen subjected to cyclic loading (the loading-unloading rate of 0.03 m/s).

Scheme number	Valley stress (MPa)	Peak stress (MPa)	Stress amplitude (MPa)	Cycle number	Time-step
1	6	18.18	12.18	7	1,573,079
2	8	18.18	10.18	10	1,897,379
3	10	18.18	8.18	12	1,837,979