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    • Keywords


      Carbon-epoxy composite laminates; fibre volume fraction; carbon nanofibre; mechanical properties; delamination.

    • Abstract


      Carbon-epoxy (C-epoxy) laminated composites having different fibre volume fractions (40, 50, 60 and 70) were fabricated with and without the addition of aminofunctionalized carbon nanofibres (A-CNF). Flexural strength, interlaminar shear strength (ILSS) and tensile strength of the composite laminates were determined. It was observed that, the ability of A-CNF to enhance the mechanical properties of C-epoxy diminished significantly as the fibre volume fraction (𝑉f) of the C-epoxy increased from 40 to 60. At 70𝑉f, the mechanical properties of the A-CNF reinforced C-epoxy were found to be lower compared to the C-epoxy composite made without the addition of A-CNF. In this paper suitable mechanisms for the observed trends are proposed on the basis of the fracture modes of the composite.

    • Author Affiliations


      I Srikanth1 2 Suresh Kumar2 Vajinder Singh3 B Rangababu2 Partha Ghosal3 Ch Subrahmanyam4

      1. Department of Materials Science & Engineering, Indian Institute of Technology, Hyderabad 502 205, India
      2. Advanced Systems Laboratory, DRDO, Hyderabad 500 058, India
      3. Defence Metallurgical Research Laboratory, DRDO, Hyderabad 500 058, India
      4. Department of Chemistry, Indian Institute of Technology, Hyderabad 502 205, India
    • Dates

  • Bulletin of Materials Science | News

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      Posted on July 25, 2019

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