Research Article
Numerical Research on Cutting Force and Fracture Morphology of Rock Plate with Two Sides Fixed and Two Sides Free
Table 4
Regression analysis results between height and PCF.
| | Rock | Fitting equation | R2 | F value | value | Relationship |
| | Marble | PCF = 0.5766 + 3.73836exp (−0.02974x) | 0.99 | 208 | 1e−5 | Exponent-negative | | Sandstone-1 | PCF = 1.16195 + 6.08036exp (−0.03104x) | 0.95 | 227 | 1e−5 | Exponent-negative | | Granite | PCF = 1.81897 + 7.60139exp (−0.03216x) | 0.96 | 374 | 4e−6 | Exponent-negative | | Sandstone-2 | PCF = 2.20864 + 7.06199exp (−0.03459x) | 0.96 | 472 | 2e−6 | Exponent-negative |
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