Mechanical responses of quasi-static and dynamic transversely loaded empty/foam-filled braided tubes were investigated with a custom load frame and pneumatic gun/projectile at velocities ranging from 21 to 27 m/s. Braided tubing was woven from AISI 304 wire (wire diameter: 0.51 mm, external diameter: 64.5 mm, length: 330 mm). Foam density ranged between 162 and 520 kg/m3. Localised foam collapse at mid-span under impact resulted in greater energy absorption for foam-filled specimens compared to quasi-static tests. Foam density significantly influenced force efficiency for reduced deflections. For low-density quasi-static tests, the average force efficiency was 58.3% decreasing to 41.9% under impact. Force efficiency for high-density foam under quasi-static loading was 42.8% decreasing to 23.4%. High-density foam cores exhibited minimal foam crushing as the increased mechanical properties of the foam resulted in braided tube failure. Low/medium-density foam cores yielded both optimal specific energy absorption over the full deflection range and force efficiency for reduced deflections.


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    Titel :

    Inertial effects on the mechanical response of aluminium foam-filled braided stainless steel tubes under transverse loading


    Beteiligte:
    Smith, Ryan (Autor:in) / Altenhof, William (Autor:in) / Bondy, Matthew (Autor:in) / Lapain, Matthew (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    01.11.2016


    Format / Umfang :

    17 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch