Mechanical analysis and toughening mechanisms of a multiphase recycled CFRP

Soraia Pimenta, Silvestre T. Pinho, Paul Robinson, Kok H. Wong, Stephen J. Pickering

Research output: Journal PublicationArticlepeer-review

43 Citations (Scopus)

Abstract

The mechanical response of a recycled CFRP is investigated experimentally. A complex multiscale microstructure is revealed, with both dispersed fibres (with fractured-sections) and fibre-bundles. The specific properties of the recyclate compare favourably with those of aluminium and glass-fibre composites. Micromechanical studies show that tensile failure follows the pre-existing fractured-sections on the dispersed-fibres, while compressive failure occurs by shear-banding. Fracture toughness measurements coupled with SEM evidence how bundles considerably toughen the composite by complex failure mechanisms. This analysis can guide the optimisation of recycling processes and support the development of design methods for recycled CFRP; it also provides insight on the mechanical response of other multiphase short-fibre reinforced materials.

Original languageEnglish
Pages (from-to)1713-1725
Number of pages13
JournalComposites Science and Technology
Volume70
Issue number12
DOIs
Publication statusPublished - Oct 2010
Externally publishedYes

Keywords

  • A. Recycling
  • B. Fracture toughness
  • B. Mechanical properties
  • C. Damage mechanics
  • Multiscale composites

ASJC Scopus subject areas

  • Ceramics and Composites
  • Engineering (all)

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