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    STP568

    Studies on the Impact Structural Damage of Composite Blades

    Published: 0


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    Abstract

    The dynamic response of jet engine fan blades subjected to foreign object impact loadings has been investigated. Two analytical methods based upon a discrete mass distribution have been used for model purposes. Numerical results for blade natural frequencies, tip displacements, and bending moments have been obtained for boron-aluminum, graphite-epoxy, titanium, and stainless steel blades. Numerical data have been discussed for the various materials considered.

    Keywords:

    dynamic structural analysis, vibration, transient response, dynamic properties, composite materials, composite beams, damage


    Author Information:

    Sun, CT
    Senior resident research associates, National Research Council, Air Force Materials Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio

    Sierakowski, RL
    Senior resident research associates, National Research Council, Air Force Materials Laboratory, Wright-Patterson Air Force Base, Dayton, Ohio


    Committee/Subcommittee: D30.02

    DOI: 10.1520/STP33158S