The effect of interleaved composite nanofibrous mats on delamination behavior of polymeric composite materials

Hamed Saghafi, Andrea Zucchelli, Giangiacomo Minak, Roberto Palazzetti

Research output: Contribution to journalArticle

82 Citations (Scopus)

Abstract

In this study the effect of interleaved nanofiber on mode I and mode II fracture response of composite laminates is considered. For this aim, electrospun Nylon 6,6 and poly-caprolactone (PCL) nanofibers and their combination are put in the mid-plane of unidirectional glass/epoxy laminates, which are then subjected to double cantilever beam (DCB) and end notched flexure (ENF) fracture tests. Results showed that PCL nanofibers could improve modes I and II energy release rate (GI and GII) almost equally with 25% and 24% increase. Influence of Nylon 6,6 nanofiber is mostly on mode II loading with 68% enhancement, while its effect on mode I is negligible (4.5% increase). It is also shown that combination of these two kinds of nanofibers lead to 21% and 56% increase in GI and GII, respectively which are between the results of the individual nanofibers.
Original languageEnglish
Pages (from-to)41-47
Number of pages7
JournalComposite Structures
Volume109
Issue number1
Early online date4 Nov 2013
DOIs
Publication statusPublished - Mar 2014
Event International Conference on Composite Structures 17 - Porto, Portugal
Duration: 17 Jun 201321 Jun 2013

Keywords

  • composite nanofibers
  • electrospinning
  • fracture
  • interleaving
  • laminate composite
  • composite nanofibrous mats
  • delamination behavior
  • polymeric composite materials

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