Damage and strengthening mechanisms of directly bonded aluminium and CF/PA laminates

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  • JESPERSEN Kristine Munk
    Kanagawa Institute of Science and Technology Faculty of Science and Engineering, Waseda University
  • ABE Hikaru
    Graduate School of Fundamental Science and Engineering, Waseda University
  • SAITO Kei
    Graduate School of Fundamental Science and Engineering, Waseda University
  • OTA Hiroki
    Graduate School of Fundamental Science and Engineering, Waseda University
  • Wada Keita
    Graduate School of Fundamental Science and Engineering, Waseda University
  • HOSOI Atsushi
    Faculty of Science and Engineering, Waseda University Kagami Memorial Research Institute for Materials Science and Technology
  • Kawada Hiroyuki
    Faculty of Science and Engineering, Waseda University Kagami Memorial Research Institute for Materials Science and Technology

Bibliographic Information

Other Title
  • 直接接合されたナノ構造を有するアルミニウム合金とCF/PA6積層板の強度発及び損傷メカニズム

Abstract

<p>The current study investigates the damage and strengthening mechanisms of a novel direct bonding method for joining aluminium and carbon fibre reinforced thermoplastic laminates. The bonding properties are studied using double cantilever beam (DCB) and end notched flexure (ENF) tests. The specimens bonded using the proposed direct bonding method are found to show significantly stronger bonding properties than the considered adhesively bonded specimens. The interface properties are further investigated by extracting the cohesive traction-separation behaviour from DCB and ENF experimental tests and used in the finite element software ABAQUS to simulate the interface behaviour. Good agreement between experiments and simulation is found for the DCB tests, however poor agreement is found for the ENF tests due to significant plastic deformation of the aluminium adherend occurring prior to and during crack propagation. Thus, plasticity will have to be avoided or taken into account in future studies, which is ongoing work.</p>

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