A cooperative investigation was conducted to evaluate Al-Cu-Mg-Li alloy 1441 for long service life fuselage applications. Alloy 1441 is currently being used for fuselage applications on the Russian Be-103 amphibious aircraft, and is expected to be used for fuselage skin on a new Tupolev business class aircraft. Alloy 1441 is cold-rollable and has several attributes that make it attractive for fuselage skin applications. These attributes include lower density and higher specific modulus with similar strength as compared to conventional Al-Cu-Mg alloys. Cold-rolled 1441 Al-Li sheet specimens were tested at NASA Langley Research Center (LaRC) and at the All-Russia Institute of Aviation Materials (VIAM) in Russia to evaluate tensile properties, fracture toughness, impact resistance, fatigue life and fatigue crack growth rate. In addition, fuselage panels were fabricated by Tupolev Design Bureau (TDB) using 1441 skins and Al-Zn-Mg-Cu alloy stiffeners. The panels were subjected to cyclic pressurization fatigue tests at TDB and at LaRC to simulate fuselage pressurization/depressurization during aircraft service. This paper discusses the results from this investigation.


    Access

    Access via TIB

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Al-Li alloy 1441 for fuselage applications


    Contributors:


    Publication date :

    2000


    Size :

    6 Seiten, 5 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Nr. 1441

    DataCite | 1873


    The Sheets of Al-Cu-Mg-Li 1441 Alloy: The Properties and Structure

    Leschiner, L. N. / Fedorenko, T. P. / Bulgakova, E. N. et al. | British Library Conference Proceedings | 1994


    2004-01-1441 Further Investigations on Time-Alignment

    Bannister, C. D. / Hawley, J. G. / Brace, C. J. et al. | British Library Conference Proceedings | 2004


    2005-01-1441 An Electronic Throttle Simulation Model with Automatic Parameter Tuning

    Shao, L. / Saikalis, G. / McCune, D. J. et al. | British Library Conference Proceedings | 2005