Pullout strength of graphene and carbon nanotube/epoxy composites

Y Chandra, Fabrizio Scarpa, S Adhikari, J Zhang, E. I. Saavedra Flores, Hua-xin Peng

Research output: Contribution to journalArticle (Academic Journal)peer-review

36 Citations (Scopus)
265 Downloads (Pure)

Abstract

An atomistic multiscale modelling approach is used to simulate the nonlinear pullout behaviour of interlinked single walled carbon nano tubes (SWCNT) and single layer graphene sheets (SLGS) embedded in an epoxy polymer. The pullout forces have been computed for various configurations of nanocomposites (SWCNT-SWCNT, SLGS-SLGS and hybrid SLGS-SWCNT), also by evaluating the effect provided by three different interlink compounds. The interfacial strength due to fibre pullout predicted by the hybrid atomistic-FE model is compared against experimental and molecular dynamics results available in open literature. The results show the specific deformation characteristics (localised auxetics) that provide an increase of pullout forces and interfacial strength with the use of the links.
Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalComposites Part B: Engineering
Volume102
Early online date7 Jul 2016
DOIs
Publication statusPublished - 1 Oct 2016

Keywords

  • Graphene sheets
  • carbon nanotubes
  • hybrid nanocomposites
  • atomistic FE
  • pullout
  • shear strength
  • auxetics

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