Interlaminar reinforcement of glass fiber/epoxy composites with graphene nanoplatelets

Nicholas T. Kamar, Mohammad Mynul Hossain, Anton Khomenko, Mahmood Haq, Lawrence T. Drzal, Alfred Loos

    Research output: Research - peer-reviewArticle

    • 12 Citations

    Abstract

    This work investigated the ability of graphene nanoplatelets (GnPs) to improve the interlaminar mechanical properties of glass-reinforced multilayer composites. A novel method was developed for the inclusion of GnPs into the interlaminar regions of plain-weave, glass fabric fiber-reinforced/epoxy polymer composites processed with vacuum assisted resin transfer molding. Flexural tests showed a 29% improvement in flexural strength with the addition of only 0.25 wt% GnP. At the same concentration, mode-I fracture toughness testing revealed a 25% improvement. Additionally, low-velocity drop weight impact testing showed improved energy absorption capability with increasing concentration of GnPs. Ultrasonic C-scans and dye penetration inspection of the impact- and back-sides of the specimens qualitatively support these results. Finally, the impact damage area was quantified from the C-scan data. These results showed that the impact-side damage area decreased with increasing concentration of GnP, while the back-side damage area increased.

    LanguageEnglish (US)
    Pages82-92
    Number of pages11
    JournalComposites Part A: Applied Science and Manufacturing
    Volume70
    DOIs
    StatePublished - 2015

    Profile

    Glass fibers
    Graphene
    Reinforcement
    Composite materials
    Graphite
    fiberglass
    Glass
    Impact testing
    Resin transfer molding
    Energy absorption
    Bending strength
    Fracture toughness
    Multilayers
    Dyes
    Inspection
    Ultrasonics
    Vacuum
    Mechanical properties
    Fibers
    Testing

    Keywords

    • A. Nanostructures
    • B. Fracture toughness
    • D. Mechanical testing
    • E. Resin transfer molding (RTM)

    ASJC Scopus subject areas

    • Ceramics and Composites
    • Mechanics of Materials

    Cite this

    Interlaminar reinforcement of glass fiber/epoxy composites with graphene nanoplatelets. / Kamar, Nicholas T.; Hossain, Mohammad Mynul; Khomenko, Anton; Haq, Mahmood; Drzal, Lawrence T.; Loos, Alfred.

    In: Composites Part A: Applied Science and Manufacturing, Vol. 70, 2015, p. 82-92.

    Research output: Research - peer-reviewArticle

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