Strength and Fatigue Properties of Sandstone under Dynamic Cyclic Loading

Table 2

Strength and fatigue properties of sandstone under different loading rates.

Loading amplitude; (kN)	Loading frequency; (Hz)	Loading speed; (kN/s)	Peak stress; (MPa)	Peak strain; (%)	Fatigue life; ()
30	1	0.5	83.88	1.496	277
30	1	1	83.27	1.457	138
30	1	2	81.81	1.199	68
30	1	4	91.34	1.233	39
30	1	8	99.82	1.317	18