The development and full-scale crash testing of a new, reusable, and essentially maintenance-free crash cushion designed to shield wide hazards are described. The energy-dissipating medium in this device is composed of high-molecular-weight, high-density polyethylene cylinders. This “smart” energy-dissipating thermoplastic is the same material used in the REACT family of narrow-hazard crash cushions and truck-mounted attenuators. It is self-restorative and reusable and possesses excellent energy-dissipation properties. The design process incorporated the results of impact testing with individual polyethylene cylinders, finite-element modeling, and a comprehensive full-scale crash testing program conducted in accordance with the guidelines of NCHRP Report 350. It is demonstrated that finite-element modeling is a cost-effective tool whose use can minimize the number of costly full-scale crash tests required to develop an effective impact attenuation device. This new, reusable, wide-hazard crash cushion satisfies all of the requirements of NCHRP Report 350 and has been accepted by FHWA for use in the National Highway System.


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    Titel :

    Reusable High-Molecular-Weight, High-Density Polyethylene Crash Cushions for Wide Hazards


    Weitere Titelangaben:

    Transportation Research Record


    Beteiligte:


    Erscheinungsdatum :

    1999-01-01




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Development of Reusable High-Molecular-Weight-High-Density Polyethylene Crash Cushions

    Carney, J. / Faramawi, M. / Chatterjee, S. | Transportation Research Record | 1996



    Development of Reusable High-Molecular-Weight–High-Density Polyethylene Crash Cushions

    Carney, J. F. / Faramawi, M. I. / Chatterjee, S. | Transportation Research Record | 1996


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