This study investigated the head injury criteria (HIC) compliance for front-row seating in transport class aircraft. Energy-absorbing bulkheads were designed using the analysis code MADYMO and simple static tests. The first of these designs used a simple aluminum sheet and the second used an aluminum honeycomb panel with fiberglass facesheets. Both designs satisfied the HIC requirement during 16-g dynamic sled tests. The investigation also established that foam pads are not effective HIC attenuators as the only means of energy absorption on a rigid bulkhead. The HIC value for a specific design was found to be sensitive to the following parameters: head impact velocity, head impact angle, seat setback distance, belt properties, and the panel stiffness and strength. The studies also showed that a minimum of 2-4 in. of bulkhead crush is required to attenuate the HIC values to levels below 1000 during 16-g dynamic sled tests.


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    Title :

    Parametric Study of Crashworthy Bulkhead Designs


    Publication date :

    2002


    Size :

    74 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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