Acoustic Emission Simulation on Coal Specimen Subjected to Cyclic Loading

Table 2

Comparison of peak strength and strain at the peak stress point in the simulation test and lab test.

Confining pressure (MPa)	Peak strength (MPa)			Axial strain at the stress peak point
	Lab test	Simulation test	Error (%)	Lab test	Simulation test	Error (%)
0	19.09	19.66	2.99	0.005964260	0.006321368	5.99
5	41.54	40.82	1.73	0.008683106	0.008711012	3.21
10	57.47	55.62	3.22	0.009213872	0.009741279	5.72