The Impact Behavior between Coal Gangue Particles and the Tail Beam Based on Rock Failure

Table 4

Material properties of brittle coal gangue particles used in the simulation.

Material	Density ()	Elastic modulus (Pa)	Poisson’s ratio	Shatter strength (MPa)
Coking coal	1200	2.30  10^9	0.25	5
Anthracite	1600	4..40  10^9	0.26	8
Sandstone	2487	1.35  10^10	0.123	10
Limestone	2715	4.65  10^10	0.26	15
Marble	2800	3.40  10^10	0.30	20
Vulnerable element	—	—	—	1