Experimental Study on Failure Law and Mechanism of Red Sandstone under Ultrasonic Vibration Excitation

Table 1

Physical and mechanical parameters of red sandstone.

Elastic modulus (GPa)	Poisson ratio	Compressive strength (MPa)	Extension strength (MPa)	Internal friction angle (°)	Cohesion (MPa)
60	0.25	54.2	6.12	42.44	18.21