Most energy absorbing structures in automotive applications consist of metals. Those are characterised by high absolute energy absorption (EA) values yet low mass-specific energy absorption (SEAm). In contrast carbon fibre reinforced polymers (CFRP) reach higher SEAm values. The difference however is not a direct consequence of the density, weight specific stiffness or strength. Instead, the failure progression and hence the energy dissipation characteristics of metallic and CFRP structures are different. Whether a combination of the two material types leads to an increase or decrease of the SEA depends on the crash characteristics of the laminate which supposedly depends on the lay-up. The present paper reports on an experimental investigation on the crash behaviour of omega-shaped fibre-metal laminates (FML) composed of unidirectional CFRP prepreg layers and steel-foils under compressive axial loads. A potential of the tested hybrid laminates is proven by an increase of the mass-specific energy absorption value (SEAm) of 58%, compared to CFRP.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Phenomenological investigation on crash characteristics of thin layered CFRP-steel laminates


    Contributors:
    Boose, Y. (author) / Kappel, E. (author) / Stefaniak, D. (author) / Prussak, R. (author) / Pototzky, A. (author) / Weiß, L. (author)

    Published in:

    Publication date :

    2022-01-02


    Size :

    10 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    Unknown




    Damage Tolerance of Structural Stitched CFRP Laminates

    Erber, A. / Witzel, V. / Drechsler, K. et al. | British Library Conference Proceedings | 2009


    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



    Transverse Cracking in CFRP Laminates with Angled Plies

    Ishikawa, T. / Yokozeki, T. / Aoki, T. et al. | British Library Conference Proceedings | 2002


    Investigation of a crash concept for CFRP transport aircraft based on tension absorption

    Schatrow, Paul / Waimer, Matthias | Taylor & Francis Verlag | 2014