Simulation of the Working Performance of a Shearer Cutting Coal Rock

Table 2

Physical and mechanical parameters of coal.

	Density (kg/m^3)	Tensile strength (MPa)	Compressive strength (MPa)	Elastic modulus (MPa)	Poisson’s ratio (MPa)	Cohesion	Internal friction angle (°)
Coal	1466.92	2.38	15.43	3940	0.33	4.5	38
Rock	2455.80	6.22	34.62	20960	0.16	14.2	34