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    Fatigue of Supersonic Transport Materials Using Simulated Flight-by-Flight Loading

    Published: 01 January 1973

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    Methods to reduce the fatigue test time for structural materials which are candidates for supersonic transport airplanes were investigated by conducting real-time and accelerated fatigue tests. The tests employed sequences of stresses and temperatures to simulate the flights of a Mach 3 transport airplane. Some of the simulated flights were altered to determine the effect of the design mean stress and the number of stress cycles per flight on fatigue life. Salt solution was also applied in other tests. Notched Ti-8Al-1MO-1V and Ti-6Al-4V were used in the investigation.


    fatigue (materials), stress cycle, elevated temperature, supersonic transports, titanium alloys, environment simulation, flight simulation, salt water, axial stress, accelerated tests

    Author Information:

    Imig, LA
    Aerospace technologist, National Aeronautics and Space Administration, Langley Research Center, Hampton, Va.

    Committee/Subcommittee: E08.05

    DOI: 10.1520/STP38845S