Crash box design has a substantial importance to reduce the fatalities in a frontal crash. In this study, four different types of multi-cell tubes, namely straight-circular, straight-square, tapered-circular and tapered-square geometries, are considered as energy absorbing components. For each type, seven different cell structures are designed, and the crashworthiness of these designs is assessed based on two different metrics: crush force efficiency (CFE) and specific energy absorption (SEA). When the thickness and the taper angle are fixed, the multi-cell design having the best performance is found to have 165% larger CFE and 237% larger SEA compared to the single-cell design having the worst performance. By varying the thickness, the CFE and SEA performances of the best design can be further increased by 5% and 7%, respectively. Similarly, by varying the taper angle, the SEA performances of the best design with varied thickness can further be increased by 4%.

    Impact behaviour of several multi-cell straight and tapered tubes are investigated

    All multi-cell models have larger CFE and SEA values than the single-cell models

    Tapered-circular tube has the best, straight-square has the worst crush performance

    CFE of the best multi-cell design is 177% larger than the worst single-cell design

    SEA of the best multi-cell design is 275% larger than the worst single-cell design


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    Titel :

    Investigation of combined effects of cross section, taper angle and cell structure on crashworthiness of multi-cell thin-walled tubes


    Beteiligte:
    Altin, Murat (Autor:in) / Kılınçkaya, Ümit (Autor:in) / Acar, Erdem (Autor:in) / Güler, Mehmet Ali (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2019-03-04


    Format / Umfang :

    16 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





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