In commercial codes, the modeling of plastic materials lags behind compared to that of many other materials. As a result, engineers have been using material models developed for metal to model plastic materials. This paper discusses the stress-strain behavior of thermoplastics relevant to crash simulation, examines the plastic material modeling capability of a commercial code LS-DYNA and presents needed model enhancements. Addressing the need of vehicle crash simulation, LSTC has made significant improvement in modeling plastic materials, as demonstrated by the new models, MAT81 and MAT89, in LS-DYNA 950 version. Nevertheless, the modeling capability of these models is not complete. Further enhancement is needed in the modeling of the rate dependence of the modulus and failure strain, pressure dependence of the yield stress and variable Poisson's ratio. Accordingly, the high strain rate testing technique should be improved to measure these properties.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Plastic material modeling for vehicle crash simulation using LS-DYNA


    Beteiligte:
    Xiao, X. (Autor:in)


    Erscheinungsdatum :

    2001


    Format / Umfang :

    5 Seiten, 4 Bilder, 1 Tabelle, 7 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch





    Vehicle crash test simulation of roadside hardware using LS-DYNA: a literature review

    Atahan,A.O. / Mustafa Kemal Univ.,TR | Kraftfahrwesen | 2010


    Numerical Simulation of Frontal Crash for Toyota Yaris Using LS-DYNA

    Tanwar, Tushar / Gupta, Shikhar / Singh, Ashwani Kumar et al. | Springer Verlag | 2022


    Improvement of an LS-DYNA Fuel Delivery Module (FDM) Crash Simulation

    Riedel, Chris / Brusoe, Michael / Penzar, Zlatko | SAE Technical Papers | 2008


    Improvement of an LS-DYNA fuel delivery module ( FDM ) crash simulation

    Brusoe,M. / Penzar,Z. / Riedel,C. et al. | Kraftfahrwesen | 2008