24th Congress of International Council of the Aeronautical Sciences, 29 August-3, September 2004, Yokohama, Japan
Paper ICAS 2004-5.4.2

FATIGUE STRENGTH OF AL-ALLOYS IN CASE OF RANDOM SPECTRA LOADING

G. I. Nesterenko, V. N. Basov
Central Aerohydrodynamic Institute (TsAGI), Russia

Keywords: random loading, spectral loading, fatigue, aluminium alloys

This paper presents the results of fatigue strength study of Al-alloys D16AT, 2024-T3, 1163T7 and 2324-T39 in case of random loading spectra of transport aircraft lower wing surface. Tests were carried out on the flat specimens with central hole. Test programs were the modified TWIST standardized loading sequence, Russian transport airplane (RTJ) and Boeing 767 wing loading programs.

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