Buckling of hybrid nanocomposites with embedded graphene and carbon nanotubes

Y. Chandra, E. I. Saavedra Flores, Fabrizio Scarpa, Sondipon Adhikari

Research output: Contribution to journalArticle (Academic Journal)

8 Citations (Scopus)
258 Downloads (Pure)

Abstract

With the aid of atomistic multiscale modelling and analytical approaches, buckling strength has been determined for carbon nanofibres/epoxy composite systems. Various nanofibres configurations considered are single walled carbon nano tube (SWCNT) and single layer graphene sheet (SLGS) and SLGS/SWCNT hybrid systems. Computationally, both eigen-value and non-linear large deformation-based methods have been employed to calculate the buckling strength. The non-linear computational model generated here takes into account of complex features such as debonding between polymer and filler (delamination under compression), nonlinearity in the polymer, strain-based damage criteria for the matrix, contact between fillers and interlocking of distorted filler surfaces with polymer. The effect of bridging nanofibres with an interlinking compound on the buckling strength of nano-composites has also been presented here. Computed enhancement in buckling strength of the polymer system due to nano reinforcement is found to be in the range of experimental and molecular dynamics based results available in open literature. The findings of this work indicate that carbon based nanofillers enhance the buckling strength of host polymers through various local failure mechanisms.
Original languageEnglish
Pages (from-to)434-441
Number of pages8
JournalPhysica E: Low-dimensional Systems and Nanostructures
Volume83
Early online date27 Jan 2016
DOIs
Publication statusPublished - Sep 2016

Keywords

  • Graphene sheets
  • Carbon nano tubes (CNT)
  • Hybrid nano-composites
  • Atomistic model
  • Graphene
  • CNT-based composites

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