A finite-element model of the AASHTO G2 guardrail (weak-post W-beam) was developed and analyzed under vehicle impact conditions by using LLNL-DYNA3D, a nonlinear, explicit, three-dimensional, public-domain, finite-element code. The modeling procedures and problems encountered are described, and suggestions for further research are given. W-beam and S3 × 5.7 steel post mesh optimization procedures and results are described. A suitable point of fixity for the posts to account for soil effects is determined. W-beam-to-post connections were investigated by three different methods. Impact influence lengths and problems associated with modeling flexible barriers are discussed. The steps taken to assemble a model, including a prebuilt vehicle model, are given. The G2 guardrail was struck with the 820C vehicle model, developed by FHWA, at a speed of 26.69 m/sec (59.7 mph) and an angle of 15.4 degrees.


    Zugriff

    Download

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Finite-Element Modeling of G2 Guardrail


    Weitere Titelangaben:

    Transportation Research Record: Journal of the Transportation Research Board


    Beteiligte:


    Erscheinungsdatum :

    01.01.1996




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Finite-Element Modeling of G2 Guardrail

    Hendricks, Bart F. | Online Contents | 1996


    Finite-Element Modeling of G2 Guardrail

    Hendricks, Bart / Wekezer, Jerry | Transportation Research Record | 1996


    Finite Element Modeling of an Energy-Absorbing Guardrail End Terminal

    Untaroiu, Costin Daniel / Hu, Wen / Meng, Yunzhu | SAE Technical Papers | 2020


    Finite element modeling and validation of a 3-strand cable guardrail system

    Mohan,P. / Marzougui,D. / Meczkowski,L. et al. | Kraftfahrwesen | 2005