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: Contribution to journalArticle

  • 19 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

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

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: Contribution to journalArticle

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