Shape memory performance of asymmetrically reinforced epoxy/carbon fibre fabric composites in flexure

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

In this study asymmetrically reinforced epoxy (EP)/carbon fibre (CF) fabric composites were prepared and their shape memory properties were quantified in both unconstrained and fully constrained flexural tests performed in a dynamic mechanical analyser (DMA). Asymmetric layering was achieved by incorporating two and four CF fabric layers whereby setting a resin- and reinforcement-rich layer ratio of 1/4 and 1/2, respectively. The recovery stress was markedly increased with increasing CF content. The related stress was always higher when the CF-rich layer experienced tension load locally. Specimens with CF-rich layers on the tension side yielded better shape fixity ratio, than those with reinforcement layering on the compression side. Cyclic unconstrained shape memory tests were also run up to five cycles on specimens having the CF-rich layer under local tension. This resulted in marginal changes in the shape fixity and recovery ratios.

Original languageEnglish
Pages (from-to)528-534
Number of pages7
JournalExpress Polymer Letters
Volume7
Issue number6
DOIs
Publication statusPublished - Jun 2013

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flexing
carbon fibers
Shape memory effect
Carbon fibers
composite materials
Composite materials
reinforcement
Reinforcement
recovery
Recovery
resins
carbon fiber
Resins
cycles

Keywords

  • Carbon fibre fabric
  • Epoxy
  • Polymer composites
  • Recovery stress
  • Shape memory polymers

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry
  • Chemical Engineering(all)
  • Organic Chemistry
  • Physical and Theoretical Chemistry

Cite this

Shape memory performance of asymmetrically reinforced epoxy/carbon fibre fabric composites in flexure. / Fejos, M.; Karger-Kocsis, J.

In: Express Polymer Letters, Vol. 7, No. 6, 06.2013, p. 528-534.

Research output: Contribution to journalArticle

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