Experimental Study on the Mechanical Properties and Damage Evolution of Hollow Cylindrical Granite Specimens Subjected to Cyclic Coupled Static-Dynamic Loads

Table 2

Test results of the rock specimens.

Rock specimen number	Impact sequence	Peak stress (MPa)	Peak strain (mm)	Maximum strain (mm)	Average strain rate (s^-1)	Absorbed energy (J)
Z-0-1	1	148.84	0.0039	0.0040	34.74	2.77
	2	144.70	0.0034	0.0035	35.10	10.64
	3	118.62	0.0042	0.0043	38.78	14.43
Z-A-3	1	118.20	0.0034	0.0034	34.62	-25.03
	2	121.45	0.0035	0.0035	35.99	-12.27
	3	138.33	0.0027	0.0028	30.73	1.14
	4	132.89	0.0028	0.0028	29.31	2.42
	5	131.08	0.0029	0.0031	32.16	7.88
	6	97.97	0.0028	0.0044	41.67	28.48
Z-B-2	1	106.01	0.0032	0.0033	27.43	-39.23
	2	109.27	0.0028	0.0030	29.27	-30.46
	3	124.45	0.0027	0.0030	27.04	-42.09
	4	109.57	0.0028	0.0031	28.69	-44.10
	5	109.27	0.0035	0.0037	33.57	-37.96
	6	100.09	0.0033	0.0039	34.07	-16.52
	7	61.42	0.0026	0.0081	41.22	-7.95
Z-C-1	1	101.93	0.0026	0.0029	25.01	-18.92
	2	99.60	0.0031	0.0034	30.60	8.79