Numerical Simulation of Fragment Separation during Rock Cutting Using a 3D Dynamic Finite Element Analysis Code

Table 3

The results of the cutting forces obtained from numerical studies.

Rock name	Depth of cut = 3 mm					Depth of cut = 6 mm					Depth of cut = 9 mm					Depth of cut = 12 mm
	Speed of cutter (m/s)					Speed of cutter (m/s)					Speed of cutter (m/s)					Speed of cutter (m/s)
	1	2	3	5	10	1	2	3	5	10	1	2	3	5	10	1	2	3	5	10
	Mean peak cutting force (kN)					Mean peak cutting force (kN)					Mean peak cutting force (kN)					Mean peak cutting force (kN)
Sandstone-1	3.4	3.6	3.0	3.2	3.6	7.2	7.7	7.3	8.0	9.2	11.4	10.7	11.8	13.9	15.4	14.7	13.2	13.1	15.9	18.4
Sandstone-2	2.4	2.7	2.8	2.2	2.6	4.7	4.3	4.3	4.7	5.8	7.3	7.3	7.9	9.0	11.2	10.4	10.1	10.4	12.1	14.4
Sandstone-3	2.8	2.7	2.4	2.6	2.9	5.2	5.9	5.6	6.7	7.3	7.6	7.6	7.7	8.2	10.9	11.8	11.0	12.6	13.7	15.1
Limestone	3.1	3.5	2.9	2.9	3.2	7.1	7.7	7.3	8.1	9.2	10.9	10.8	9.6	12.8	14.6	13.4	14.7	13.9	15.7	17.4