Table 4 FSW nominal stress fitting curve parameters
From: Unified Principal S–N Equation for Friction Stir Welding of 5083 and 6061 Aluminum Alloys
Statistical basis | Mean | + 2σ | − 2σ | + 3σ | − 3σ | |
|---|---|---|---|---|---|---|
Butt 5083 | Cd | 1436.4 | 1809.6 | 1140.2 | 2031.1 | 1015.8 |
h | 0.1791 | |||||
Lap5083 | Cd | 676.0 | 911.5 | 501.3 | 1058.5 | 431.7 |
h | 0.2383 | |||||
Butt 6061 | Cd | 16195.4 | 22134.7 | 11849.8 | 25877.0 | 10136.1 |
h | 0.3542 | |||||
Lap 6061 | Cd | 1159.4 | 1835.6 | 732.3 | 2309.6 | 582.0 |
h | 0.2594 | |||||