This study proposes a hybrid structural design concept of polyurethane foam-filled magnesium alloy AZ31B rectangular thin-walled beams which serve as energy absorbing components in automotive applications. Uniaxial tensile and compressive tests, and fracture tests were performed to investigate the material mechanical properties. Dynamic three-point bending tests were performed to study the deformation/fracture modes and energy absorption capacity for the foam-filled AZ31B beams, and to compare these mechanical properties with those for mild steel DC04 beams. Different AZ31B beams were filled with a variation of foam density (0.05, 0.20 and 0.30 g/cm3). It was found that the AZ31B beam filled with 0.20 g/cm3 foam reached the highest specific energy absorption; moreover, it absorbed more energy and reached much higher specific energy absorption than the foam-filled DC04 beam filled with the same foam, although the former one was nearly 54% lighter. The potential advantage of the foam-filled AZ31B beams is possibly associated with the high work hardening rate of AZ31B sheet in compression, which may involve more material in plastic deformation compared with the foam-filled DC04 beams. It has therefore been demonstrated that the hybrid structural design concept of the polyurethane foam-filled AZ31B beam has potential applications in auto-body structures.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Dynamic bending behaviour of magnesium alloy rectangular thin-wall beams filled with polyurethane foam


    Beteiligte:
    Zhou, Ping (Autor:in) / Beeh, Elmar (Autor:in) / Kriescher, Michael (Autor:in) / Friedrich, Horst E. (Autor:in) / Kopp, Gundolf (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2016-11-01


    Format / Umfang :

    17 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Biaxial bending collapse of thin-walled beams filled partially or fully with aluminium foam

    Kim,H.S. / Wierzbicki,T. / Massachusetts Inst.of Technology,Cambridge,US | Kraftfahrwesen | 2000


    OBJECT FILLED WITH FLAME-RETARDANT POLYURETHANE FOAM

    KINOSHITA MASAKI / OKADA KAZUHIRO / OKADA YOSUKE | Europäisches Patentamt | 2019

    Freier Zugriff

    Study of the bending response of metal foam-filled beams applied to enhance the rollover behaviour of coach structures

    Cazzola, G.J. / Alcalá Fazio, E. / Izquierdo, F. Aparicio | Taylor & Francis Verlag | 2013



    Bending crush resistance of partially foam-filled sections

    Santosa, S. / Banhart, J. / Wierzbicki, T. | Tema Archiv | 2000