Results are presented from a joint research program on helicopter crashworthiness conducted by the U.S. Army Aerostructures Directorate and NASA Langley. Through the ongoing research program an in-depth understanding has been developed on the cause/effect relationships between material and architectural variables and the energy-absorption capability of composite material and structure. Composite materials were found to be efficient energy absorbers. Graphite/epoxy subfloor structures were more efficient energy absorbers than comparable structures fabricated from Kevlar or aluminum. An accurate method of predicting the energy-absorption capability of beams was developed.


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    Title :

    Energy absorption of composite material and structure


    Contributors:

    Conference:

    AHS, Annual Forum ; 1987 ; Saint Louis, MO, United States


    Publication date :

    1987-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English





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