The accuracy of the CRASHEX version of CRASH, which uses a Newtonian rather than a Cartesian treatment of impact, is compared with that of a substantially “original” version of CRASH, both evaluated with respect to EDSMAC computer simulations of the RICSAC series of staged, partially braked collisions; and with similar data for EDCRASH, as published but recomputed.Special problems inherent in treatment of impact with a stopped vehicle, quasi-head-on impact, failure to separate after initial impact, and spin truncated by side slap are discussed.Appropriate use of the statistical confidence interval in single-event reconstruction is also discussed, as are anomalies in previously published standard deviations for EDCRASH applied to the RICSAC data.The study shows that the Cartesian simplification incurs dominantly large errors, a finding not generally recognized. For complete and accurate reconstruction, Newtonian treatment, as now provided in CRASHEX, is requisite.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Validation of Newtonian Reconstruction (CRASHEX) Against Simulations of RICSAC Staged Collisions


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    SAE International Congress and Exposition ; 1997



    Publication date :

    1997-02-24




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





    Validation of Newtonian Reconstruction (CRASHEX) Against Simulations of RICSAC Staged Collisions

    Fonda, A. G. / SAE | British Library Conference Proceedings | 1997


    Further Validation of EDSMAC using the RICSAC staged collisions

    Day,T.D. / Hargens,R.L. / Engineering Dynamics,US | Automotive engineering | 1990


    Further Validation of EDSMAC Using the RICSAC Staged Collisions

    Hargens, Randall L. / Day, Terry D. | SAE Technical Papers | 1990


    Further validation of EDCRASH using the RICSAC staged collisions

    Day,T.D. / Hargens,R.L. / Engng.Dyn.,US | Automotive engineering | 1989