A smart multifunctional polymer nanocomposites layer for the estimation of low-velocity impact damage in composite structures

F Capezzuto, Francesco Ciampa, G Carotenuto, Michele Meo, Eva Milella, F Nicolais

Research output: Contribution to journalArticle

9 Citations (Scopus)
145 Downloads (Pure)

Abstract

A new smart polymer nanocomposite layer, based on semiconductor Cu2S nanoparticles embedded into an amorphous polystyrene matrix, was developed for the detection of low-velocity impact damage on composite structures. This material exhibits a combination of optical and electro-magnetic properties, in way that it can be employed to visualize in quick and effective manner barely visible impact damage (BVID). In particular, based on the phenomenon of the photoluminescence, this layer showed specific light emission in the visible range of the electromagnetic spectrum under UV-light excitation at different wavelength. The results of a series of low-velocity impact tests illustrated a visible contrast colour on the damaged area, representing the flaw. In fact, the study of the optical characteristics of this smart material is of particular benefit for fast, cost-effective and in situ damage identification. Hence, once the impact location has been determined, the detailed information of the damage can be further investigated by others non-destructive techniques.
Original languageEnglish
Pages (from-to)1913-1919
Number of pages7
JournalComposite Structures
Volume92
Issue number8
DOIs
Publication statusPublished - Jul 2010

Keywords

  • smart layer
  • low-velocity impact
  • fluorescence
  • nanocomposites

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