Numerical Simulation of Rock Plate Cutting with Three Sides Fixed and One Side Free

Table 6

Regression results to predict peak force.

Variables	Cutting parameter	Regression equation	Correlation coefficient	F value	value
F-lz	lx of 400 mm	y = 2.20972 + 2.15256 exp(−0.03941x)	0.86204	849	4.7e^−7
F-lz	lx of 500 mm	y = 2.22638 + 2.03257 exp(−0.03707x)	0.81477	632	9.8e^−7
F-lx	ly of 160 mm	y = 2.32392 + 13.7128 exp(−0.03684x)	0.98484	1645	6.0e^−9
F-lx	ly of 200 mm	y = 2.30385 + 11.7590 exp(−0.03352x)	0.97576	1044	2.3e^−8
F-ly	lx and lz of 400 mm and 160 mm	y = −0.19038 + 0.64984 exp(0.08336x)	0.9997	10662	6.9e^−3
F-ly	lx and lz of 500 mm and 200 mm	y = −1.07126 + 1.2321 exp(0.06483x)	0.97680	1022	2.2e^−2
F-θ	lx and lz of 400 mm and 160 mm	y = 2.52079 + 0.16632x − 0.00615x^2	0.669	7	4.8e^−2
F-θ	lx and lz of 500 mm and 200 mm	y = 2.29038 + 0.19510x − 0.00705x^2	0.9153	33	3.2e^−3
F-lxp/lx	lx and lz of 400 mm and 160 mm	2.24707 + 790.52 exp(−54.92394x)	0.97858	2235	1.5e^−2
F-lxp/lx	lx and lz of 500 mm and 200 mm	2.23067 + 1883.8 exp(−57.40125x)	0.97629	763	2.5e^−2