Design and characterisation of advanced pseudo-ductile unidirectional thin-ply carbon/epoxy-glass/epoxy hybrid composites

Czél, Gergely and Jalalvand, Meisam and Wisnom, Michael R. (2016) Design and characterisation of advanced pseudo-ductile unidirectional thin-ply carbon/epoxy-glass/epoxy hybrid composites. Composite Structures, 143. pp. 362-370. ISSN 0263-8223

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    Abstract

    A comprehensive set of thin-ply pseudo-ductile unidirectional interlayer hybrid composite materials comprising S-glass and a variety of thin carbon prepregs was designed and characterised. Unique elastic-yielding-hardening type stress-strain responses similar to those of ductile metals were achieved through fragmentation and stable pull-out of the carbon layers, generating a range of initial moduli, pseudo-yield strains, plateau stresses and pseudo ductile strains for the various configurations. The typical failure modes of thin-ply hybrid composites were highlighted in four series of stress-strain graphs obtained for the same materials with different carbon layer thicknesses. The predicted failure modes agreed well with the experimental results and demonstrated the merit of our two step design framework based on (i) simple analytical criteria and (ii) novel damage mode maps.

    Creators(s): Czél, Gergely, Jalalvand, Meisam ORCID logoORCID: https://orcid.org/0000-0003-4691-6252 and Wisnom, Michael R.;
    Item type:Article
    ID code:62545
    Keywords:damage and fracture mechanics, delamination, fragmentation, mechanical testing, pseudo-ductility, thin-ply composites, Mechanical engineering and machinery, Ceramics and Composites, Civil and Structural Engineering
    Subjects:Technology > Mechanical engineering and machinery
    Department:Faculty of Engineering > Mechanical and Aerospace Engineering
    Depositing user: Pure Administrator
    Date deposited:06 Dec 2017 12:28
    Last modified:22 May 2020 03:03
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/62545
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