Acoustic Emission Simulation on Coal Specimen Subjected to Cyclic Loading

Table 6

Contact number of specimen at the peak stress point of failure cycle under the different confining pressures.

Scheme number	Confining pressure (MPa)	Number of fractured contacts	Number of unbroken contacts	Ratio (%)
1	0	1561	15,837	9.86
2	5	1802	17,142	10.51
3	10	2573	18,215	14.13