Table 6 Results of confirmation experiments
Ultimate tensile strength (MPa) | Modulus of elasticity (MPa) | Grey relational grade | |
|---|---|---|---|
Trial 1 | 41 | 3251 | − |
Trail 2 | 42 | 3256 | − |
Trail 3 | 42.6 | 3274 | − |
S/N ratio | 36.9542 | 70.26 | − |
Initial process parameters | A1B3C3D3E3F3G3H2I2J2K1 | 0.8156 | |
Optimal process parameters | Prediction | A3B3C3D3E3F1G3H2I1J1K1 | 0.926 |
Confirmation test | A3B3C3D3E3F1G3H2I1J1K1 | 0.9524 | |