Open AccessInvestigation of low- and high cycle fatigue in Al 2024-T4 alloy
Author(s) -
Sylwester Kłysz
Publication year - 2021
Publication title -
technical sciences
Language(s) - English
Resource type - Journals
eISSN - 2083-4527
pISSN - 1505-4675
DOI - 10.31648/ts.6087
Subject(s) - materials science , alloy , fuselage , blank , perpendicular , rotor (electric) , metallurgy , plating (geology) , structural engineering , composite material , mechanical engineering , engineering , geometry , mathematics , geophysics , geology
The article presents the results of low-(LCF) and high (HCF) fatigue in samples of aluminum alloy 2024-T4, which is used in aircraft construction, mainly for highly loaded structural components, including for plating and fuselage frames and girders rotor blades of helicopters. This alloy is used where it is required a high strength to weight ratio of the product and high resistance to fatigue. Moreover, it is poorly weldable and has a low corrosion resistance. The tests were performed on hourglass and cylindrical samples, with a parallel and perpendicular orientation relative to the "direction of embodiment" or blank sheet rolling direction. Material for the study was collected from the production line design elements PZL-130 Orlik TC-II. There have been a description of the analytical results in the form of Manson-Coffin and Morrow equations.