Study on Mode I fatigue behaviour of Nylon 6,6 nanoreinforced CFRP laminates

T. Brugo, G. Minak, A. Zucchelli, X.T. Yan, J. Belcari, H. Saghafi, R. Palazzetti

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The benefits of interleaving polymeric electrospun nanofibers in between laminae of composite structure have been widely demonstrated in the past several years. Among the work that still has to be done, this paper aims to study delamination propagation of virgin and nanomodified specimens under Mode I fatigue loading. A 40-micron thick layer of Nylon 6,6 nanofibers have been produced and interleaved in carbon fiber-epoxy resin composite laminates; static and dynamic double cantilever tests have been performed to determine delamination growth onset and crack propagation rate vs. maximum energy release rate respectively.
Nanomodified specimens exhibited improved delamination resistance during both the tests: delamination toughness increased 130% and cracks propagated 36 to 27 times slower than virgin interfaces.
The benefits of the nanointerleave and its working mechanism have been explained using micrographs and SEM images, which revealed a double-stage reinforce mechanism.
LanguageEnglish
Pages51-57
Number of pages8
JournalComposite Structures
Volume164
Early online date27 Dec 2016
DOIs
Publication statusPublished - 15 Mar 2017

Fingerprint

Carbon fiber reinforced plastics
Delamination
Laminates
Fatigue of materials
Nanofibers
Epoxy Resins
Energy release rate
Composite structures
Epoxy resins
Toughness
Carbon fibers
Crack propagation
Cracks
Scanning electron microscopy
carbon fiber reinforced plastic
nylon 6
Composite materials

Keywords

  • fatigue
  • delamination
  • composite material
  • crack growth
  • nanofibers
  • fatigue loading
  • nylon

Cite this

Brugo, T., Minak, G., Zucchelli, A., Yan, X. T., Belcari, J., Saghafi, H., & Palazzetti, R. (2017). Study on Mode I fatigue behaviour of Nylon 6,6 nanoreinforced CFRP laminates. Composite Structures, 164, 51-57. https://doi.org/10.1016/j.compstruct.2016.12.070
Brugo, T. ; Minak, G. ; Zucchelli, A. ; Yan, X.T. ; Belcari, J. ; Saghafi, H. ; Palazzetti, R. / Study on Mode I fatigue behaviour of Nylon 6,6 nanoreinforced CFRP laminates. In: Composite Structures. 2017 ; Vol. 164. pp. 51-57.
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Brugo, T, Minak, G, Zucchelli, A, Yan, XT, Belcari, J, Saghafi, H & Palazzetti, R 2017, 'Study on Mode I fatigue behaviour of Nylon 6,6 nanoreinforced CFRP laminates' Composite Structures, vol. 164, pp. 51-57. https://doi.org/10.1016/j.compstruct.2016.12.070

Study on Mode I fatigue behaviour of Nylon 6,6 nanoreinforced CFRP laminates. / Brugo, T.; Minak, G.; Zucchelli, A.; Yan, X.T.; Belcari, J.; Saghafi, H.; Palazzetti, R.

In: Composite Structures, Vol. 164, 15.03.2017, p. 51-57.

Research output: Contribution to journalArticle

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AU - Brugo, T.

AU - Minak, G.

AU - Zucchelli, A.

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AU - Saghafi, H.

AU - Palazzetti, R.

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AB - The benefits of interleaving polymeric electrospun nanofibers in between laminae of composite structure have been widely demonstrated in the past several years. Among the work that still has to be done, this paper aims to study delamination propagation of virgin and nanomodified specimens under Mode I fatigue loading. A 40-micron thick layer of Nylon 6,6 nanofibers have been produced and interleaved in carbon fiber-epoxy resin composite laminates; static and dynamic double cantilever tests have been performed to determine delamination growth onset and crack propagation rate vs. maximum energy release rate respectively.Nanomodified specimens exhibited improved delamination resistance during both the tests: delamination toughness increased 130% and cracks propagated 36 to 27 times slower than virgin interfaces.The benefits of the nanointerleave and its working mechanism have been explained using micrographs and SEM images, which revealed a double-stage reinforce mechanism.

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