In this research, two thicknesses of a woven CFRP laminate have been subjected to impact by a steel sphere in a velocity regime ranging from 170 to 374 m/s. Impact and penetration of targets at normal and oblique incidence were studied using high speed video. For the normal incidence targets at the higher velocities of impact, a conical mass of laminate was ejected ahead of the projectile. Furthermore, despite the energy transferred to the plate increasing with impact energy, the degree of delamination in the thicker targets decreased indicating a change in projectile penetration mechanism. Eventually, the degree of delamination in the thicker targets appeared to approach an asymptotic level whereas for the thinner targets the degree of delamination appeared constant regardless of impact energy. For oblique targets, more of the kinetic energy was transferred from the projectile when compared to the same thickness of target that had been subjected to a normal incidence impact. However, this was merely due to a geometrical effect. Further, thicker panels appeared to behave more efficiently by absorbing more kinetic energy per effective linear thickness at the lower impact energies where petalling is a dominant factor in the penetration. This advantage appeared to disappear as the impact energy was increased.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Normal and oblique penetration of woven CFRP laminates by a high velocity steel sphere


    Beteiligte:
    Hazell, P.J. (Autor:in) / Kister, G. (Autor:in) / Stennett, C. (Autor:in) / Bourque, P. (Autor:in) / Cooper, G. (Autor:in)


    Erscheinungsdatum :

    2008


    Format / Umfang :

    9 Seiten, 16 Bilder, 16 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch




    Crush energy absorption of woven CFRP laminates

    Soutis, C. / Ramany Bala Poubady, V. / Institution of Mechanical Engineers; Aerospace Industries Division | British Library Conference Proceedings | 1998



    Damage mechanisms and analytical model of CFRP laminate under low-velocity normal and oblique impacts

    Li, Zhongyu / Zhang, Junyuan / Lu, Bingquan et al. | Taylor & Francis Verlag | 2024