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

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2013
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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.
Reference Key
fejos2013expressshape Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;M. Fejos;J. Karger-Kocsis
Journal introducing the mysql 8 document store
Year 2013
DOI
10.3144/expresspolymlett.2013.49
URL
http://www.expresspolymlett.com/letolt.php?file=EPL-0004316&mi=cd
Keywords
Epoxy polymer composites mechanics of materialschemical technology recovery stressmaterials of engineering and construction

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