Viscoelastic properties of bioinspired asymmetric helicoidal CFRP composites

Chidume Nwambu, Colin Robert, Parvez Alam

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

A dynamic mechanical thermal analyser (DMTA) was used to develop insight into the dynamic mechanical properties of bioinspired asymmetric helicoidal carbon fibre reinforced plastic (CFRP) composites as a function of fibre architecture using inter-ply stacking angles of 0° (UD), 0/90° (cross-ply), 5°, 15°, 10°, 20°, 25° and 30°. Here, we show that the dynamic mechanical properties of asymmetric helicoidal CFRP composites are linearly correlated to their oriented ply fractions between 0° and 45° off the loading axis. We furthermore provide evidence from the tan-δ curves that asymmetric helicoidal CFRP composites are heterogeneous materials with separate viscoelastic phases and glass transition temperatures, resulting from the stacking architectures of these composites. Inter-ply stacking angles are finally noted as critical factors affecting the extent of macromolecular mobility within helicoidally stacked continuous fibre CFRP composites.
Original languageEnglish
Pages (from-to)805-810
Number of pages6
JournalMRS Advances
Volume7
Issue number31
Early online date19 Aug 2022
DOIs
Publication statusPublished - Nov 2022

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