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    Evaluation of flawed composite structural components under static and cyclic loading (1979)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The effects of initial defects on the fatigue and fracture response of graphite-epoxy composite laminates are presented. The structural laminates investigated were a typical angle ply laminate, a polar/hoop wound pressure vessel laminate, and a typical engine fan blade laminate. Defects investigated were full and half penetration circular holes, full and half penetration slits, and countersink holes. The effects of the defect size and type on the static fracture strength, fatigue performance, and residual static strength are shown as well as the results of loadings on damage propagation in composite laminates. The data obtained were used to define proof test levels as a qualification procedure in composite structure subjected to cyclic loading.
    Keywords: COMPOSITE MATERIALS
    Type: NASA-CR-135403
    Format: application/pdf
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