Research Article
Numerical Research on Cutting Force and Fracture Morphology of Rock Plate with Two Sides Fixed and Two Sides Free
Table 3
Regression analysis results between height and PCF.
| | Rock | Fitting equation | R2 | F value | value | Relationship |
| | Marble | PCF = 0.62519 + 5.75481exp (−0.0282x) | 0.99 | 1604 | 7e−9 | Exponent-negative | | Sandstone-1 | PCF = 1.20563 + 6.48736exp (−0.01988x) | 0.98 | 570 | 1e−7 | Exponent-negative | | Granite | PCF = 1.87245 + 7.04803exp (−0.01939x) | 0.98 | 924 | 3e−8 | Exponent-negative | | Sandstone-2 | PCF = 2.33979 + 4.96324exp (−0.0127x) | 0.98 | 1897 | 4e−9 | Exponent-negative |
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