Comparisons of the impact performance of a 5-ft diameter crashworthy composite fuselage section were investigated for hard surface, soft soil, and water impacts. The fuselage concept, which was originally designed for impacts onto a hard surface only, consisted of a stiff upper cabin, load bearing floor, and an energy absorbing subfloor. Vertical drop tests were performed at 25-ft/s onto concrete, soft-soil, and water at NASA Langley Research Center. Comparisons of the peak acceleration values, pulse durations, and onset rates were evaluated for each test at specific locations on the fuselage. In addition to comparisons of the experimental results, dynamic finite element models were developed to simulate each impact condition. Once validated, these models can be used to evaluate the dynamic behavior of subfloor components for improved crash protection for hard surface, soft soil, and water impacts.


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    Titel :

    Multi-Terrain Impact Testing and Simulation of a Composite Energy Absorbing Fuselage Section


    Beteiligte:

    Kongress:

    American Helicopter Society 60th Annual Forum ; 2004 ; Baltimore, MD, United States


    Erscheinungsdatum :

    01.01.2004


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Multi-Terrain Impact Testing and Simulation of a Composite Energy Absorbing Fuselage Section

    Fasanella, Edwin L. / Jackson, Karen E. / Lyle, Karen H. et al. | NTRS | 2007


    Multi-Terrain Impact Testing and Simulation of a Composite Energy Absorbing Fuselage Section

    Fasanella, E. L. / Jackson, K. E. / Lyle, K. H. et al. | British Library Conference Proceedings | 2004


    Multi-terrain impact tests and simulations of an energy absorbing fuselage section

    Fasanella, Edwin L. / Jackson, Karen E. / Lyle, Karen H. et al. | Tema Archiv | 2007