Energy Distribution Law of Dynamic Failure of Coal-Rock Combined Body

Table 1

The average of the experimental data.

Serial number	Compressive strength/MPa	Elastic modulus/MPa	Prepeak energy/KJ	Postpeak energy/KJ	Impact energy index
C	12.47	1023.05	0.118	0.019	6.240
G	57.89	2881.22	2.532	0.824	3.071
F	127.85	3245.83	16.897	7.646	2.210