Current progress in parallel algorithm research and applications in vehicle crash simulation is described for the explicit, finite-element algorithms in DYNA3D. Two challenging algorithm research problems are addressed: problem partitioning methods and parallel algorithms for contact at material interfaces. Two prototype parallel contact algorithms have been developed for treating the cases of local and arbitrary contact. Demonstration problems for local contact are crashworthiness simulations with 22 locally defined contact surfaces and a vehicle-barrier collision modeled with arbitrary contact. A simulation of crash tests conducted for a vehicle striking a U-channel small signpost embedded in soil has been run on both the serial and parallel versions of DYNA3D. A significant reduction in computational time has been observed when running these problems on the parallel version. However, to achieve maximum efficiency, complex problems must be appropriately partitioned, especially when contact dominates the computation.


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    Titel :

    Crashworthiness Simulations with DYNA3D


    Weitere Titelangaben:

    Transportation Research Record: Journal of the Transportation Research Board


    Beteiligte:


    Erscheinungsdatum :

    01.01.1996




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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    Schauer, Dale A. | Online Contents | 1996


    Crashworthiness Simulations with DYNA3D

    Schauer, Dale / Hoover, Carol / Kay, Gregory et al. | Transportation Research Record | 1996


    Automatic Contact in DYNA3D for Vehicle Crashworthiness

    Whirley, R. G. / Engelmann, B. E. / ASME; Applied Mechanics Division et al. | British Library Conference Proceedings | 1993


    Crashworthiness Analysis Using Advanced Material Models in DYNA3D

    Logan, R. W. / Burger, M. J. / McMichael, L. D. et al. | British Library Conference Proceedings | 1993


    Application of DYNA3D in Large Scale Crashworthiness Calculations

    D. J. Benson / J. O. Hallquist / M. Igarashi et al. | NTIS | 1986