Mechanical and Acoustic Emission Responses of Rock Fragmentation under Disc Cutter Penetration

Table 1

Physical and mechanical parameters of the granite and sandstone.

Parameters	Granite	Sandstone
Uniaxial compressive strength (MPa)	148.45	60.46
Elastic modulus (GPa)	37.22	13.55
Poisson’s ratio	0.26	0.29
Tensile strength (MPa)	6.68	2.36
Density (g/cm³)	2.64	2.25