The energy absorption characteristics of a stitched sandwich panel were investigated using experimental and analytical techniques. The structural stability aspects of the proposed mechanism were evaluated using the existing buckling and wrinkling theories. The effect of through-the-thickness stitches on the stability characteristics was investigated using finite element analysis. The configuration of the energy absorption mechanism was based on the stability analysis. The actual energy absorption process was characterized by conducting static crush tests. The experimental results indicated an increase in energy absorption capability with smaller stitch spacing and also resulted in smoother load deflection curves. A broad design guideline was developed for the design of a sandwich panel for energy absorption, based on stability analysis and experimental results.


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    Title :

    Energy Absorption in Stitched Composite Sandwich Panels


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Advances In Aviation Safety Conference & Exposition ; 1998



    Publication date :

    1998-04-06




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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