Endurance of aluminium alloy lugs with steel interference-fit pins or bushes.
Abstract:ESDU 84025 provides a method for estimating the fatigue endurance of the lugs under a constant amplitude alternating load. The results of over 800 tests taken from the literature were analysed; graphs show the test results, with design S-N curves, plotted in terms of non-dimensional parameters that account for the effects of alternating and mean stress, stress concentration, interference-fit, and material characteristics through ultimate tensile strength. Data cover Al-Cu-Mg and Al-Zn-Mg alloys in three heat treatments. Tables detail the material specifications and the lug geometries tested. Pin, or bush, diameter-to-lug thickness ratios ranged from 0.16 to 1.71. The effect of interference-fit on the local tensile stress and fatigue alternating stress on the hole boundary is discussed.
|Data Item ESDU 84025|
- Aircraft Noise
- Fatigue - Endurance Data
- Fatigue - Fracture Mechanics
- Fluid Mechanics, Internal Flow
- Fluid Mechanics, Internal Flow (Aerospace)
- Heat Transfer
- Physical Data, Chemical Engineering
- Stress and Strength
- Transonic Aerodynamics
- Vibration and Acoustic Fatigue
- Wind Engineering
Aerospace Materials Data
Additional Engineering References