Experimental Study on SHPB Dynamic Mechanical Response in Different Damage Zones of Rock under Blast Load

Table 1

Fragment mass distribution of SHPB experimental specimens.

Characteristic size r (mm)	Rock fragmentation mass (g)
	A1	A2	A3		A4	A5	B1	B2	B3	B4	B5
40	0	59	60.5		0	0	148.8	0	80	85.9	0
30	0	0	0		110.5	0	0	0	73.3	38.5	42.6
15	109.1	78.3	73.9		18.3	102.3	12.4	136.4	0	14.5	38.3
10	25.7	19.8	12.1		20.1	24.6	0	17	3.8	5.5	41.2
5	9.3	3	6.7		5.5	15.5	0.9	4.1	1.3	8.8	19.8
2.5	4.5	1.7	2.7		1.5	5	0	1.1	0.1	4.8	6.4
1.25	2.3	0.8	1.2		0.9	2.5	0	0.3	0.1	0.7	2.7
0.63	2	0.5	1		0.7	1.7	0.1	0.1	0.1	0.4	2.3
0.425	0.4	0.3	0.1		0.1	0.7	0	0.1	0.1	0.1	0.6
0.075	6	1.4	3.5		1.7	5.3	0	0.9	0.1	0.9	6.7
<0.075	0.1	0	0.1		0.3	0	0	0	0	0	0.1
Total mass	159.4	164.8		161.8	159.6	157.6	162.2	160	158.9	160.1	160.7