Table 8 Parameter optimization results (C2)
From: Structural Stress–Fatigue Life Curve Improvement of Spot Welding Based on Quasi-Newton Method
SFFXY | SFFZ | SFMXY |
0.0456 | 1.07 × 10−5 | 0.023 |
DEFXY | DEFZ | DEMXY |
2.77 × 10−5 | 2.65 × 10−5 | 1.44×10−5 |
TEFXY | TEFZ | TEMXY |
4.58 × 10−5 | 7.95 × 10−5 | 4 × 10−4 |