The stab resistance of shear thickening fluid (STF)-treated Kevlar registered and Nylon fabrics is investigated and found to exhibit significant improvements over neat fabric targets of equivalent areal density. Specifically, dramatic improvements in puncture resistance (spike threat) are observed under high and low speed loading conditions, while slight increases in cut protection (knife threat) are also observed. Studies on the effect of fabric architecture indicate that STF addition provides benefits analogous to the effect of increasing fabric yarn count, with STF addition primarily reducing the mobility of filaments and yarns in the impact zone. Microscopy shows significant energy dissipation in the damage zone that includes plastic flow of the polymeric filaments, as well as deformation of the filaments due to mechanical interaction with the colloidal particles of the STF. These results indicate that these novel materials could be used to fabricate flexible body armors that provide improved protection against stab threats.


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    Titel :

    Stab resistance of shear thickening fluid (STF)-treated fabrics


    Beteiligte:
    Decker, M.J. (Autor:in) / Halbach, C.J. (Autor:in) / Nam, C.H. (Autor:in) / Wagner, N.J. (Autor:in) / Wetzel, E.D. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2007


    Format / Umfang :

    14 Seiten, 14 Bilder, 2 Tabellen, 53 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




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