Experimental Study on Energy Evolution and Storage Performances of Rock Material under Uniaxial Cyclic Compression

Table 6

Calculation results of peak energy density of rock.

Specimen no.	Total input energy density (mJ/mm^3)		Peak elastic energy density (mJ/mm^3)		Peak dissipated energy density (mJ/mm^3)
	Approach 1	Approach 2	Approach 1	Approach 2	Approach 1	Approach 2
GS-1	0.2556	0.3129	0.1923	0.2054	0.0633	0.1075
GS-2	0.3258	0.3659	0.2547	0.2535	0.0711	0.1124
GS-3	0.3129	0.3623	0.2444	0.2523	0.0685	0.1100
Average	0.2981	0.3470	0.2305	0.2371	0.0676	0.1100
YG-1	0.5587	0.5950	0.5042	0.5096	0.0545	0.0854
YG-2	0.5970	0.6266	0.5379	0.5406	0.0591	0.0860
YG-3	0.5682	0.5968	0.5051	0.5226	0.0631	0.0742
Average	0.5746	0.6061	0.5157	0.5243	0.0589	0.0819