Energy and Fatigue Damage Evolution of Sandstone under Different Cyclic Loading Frequencies

Table 2

Uniaxial compression test results.

Specimen	Uniaxial compressive strength (MPa)	Average (MPa)	Yield strength (MPa)	Elastic modulus (GPa)	Poisson’s ratio
U1	61.2	60.9	50	14.8	0.21
U2	60.5
U3	59.4