Fatigue life of 2024-T3 aluminum under variable amplitude multiaxial loadings: Experimental results and predictions
Abstract
This paper investigates fatigue behavior under variable amplitude multiaxial service loadings using 2024-T3 aluminum alloy. Experimental results for smooth and notched specimen fatigue tests under axial, torsion, and combined axial-torsion loadings are compared to predictions based on von Mises equivalent stress-based approaches. Predictions using the SWT mean stress correction were in better agreement with experimental results than those based on Modified Goodman. The stress-based approaches predicted fatigue life reasonably well for notched specimens where a local uniaxial stress state always exists for the geometry considered, but not so well for smooth specimens where multiaxial loading effects come into play.
Publication Title
Procedia Engineering
Recommended Citation
Gates, N., & Fatemi, A. (2015). Fatigue life of 2024-T3 aluminum under variable amplitude multiaxial loadings: Experimental results and predictions. Procedia Engineering, 101 (C), 159-168. https://doi.org/10.1016/j.proeng.2015.02.021
