Energy Dissipation and Failure Characteristics of Layered Composite Rocks under Impact Load

Table 1

Mechanical parameters of black sandstone and white sandstone samples.

Lithology	Compressive strength (MPa)	Elastic modulus (GPa)	Tensile strength (MPa)	Poisson’s ratio	Longitudinal wave velocity (m⋅s^−1)	Density (kg⋅m^−3)
White sandstone	44.62	6.65	4.06	0.16	3946	2677
Black sandstone	65.29	7.12	5.02	0.13	3452	2718