Abstract
This article introduces a method to determine the Detail Fatigue Rating (DFR) of lugs through constant amplitude fatigue testing. Fatigue tests of titanium alloy lugs were designed, and the DFR of lugs was calculated based on the test results. A comparative analysis was conducted from two aspects: the relative width (d/b) and the loading direction (θ) of straight lugs, and the effect of lug parameters on the DFR was discussed. The results indicate that the DFR of lugs is positively correlated with the relative width (d/b) and negatively correlated with the loading direction (θ).
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