Table 8 Comparison of bending fatigue test results and evaluation life of test sample type 2
From: Unified Principal S–N Equation for Friction Stir Welding of 5083 and 6061 Aluminum Alloys
Stress type | Stress value (MPa) | 50% S–N curve fatigue assessment life (times) | Load range (kN) | Test fatigue life (times) |
|---|---|---|---|---|
\(\Delta \sigma\)(Nominal stress range) | 166.6 | 409118 | 4.25–0.425 | 194606 |
\(\Delta \sigma_{\max }\)(Finite element maximum principal stress range) | 110.1 | 1317403 | ||
\(\Delta \sigma_{s}\)(Structural stress range) | 155.3 | 177495 | ||
\(\Delta S\)(Equivalent structural stress range) | 149.9 | 241807 |