Mode I and Mode II fracture energy of MWCNT reinforced nanofibrilmats interleaved carbon/epoxy laminates

Shay Hamer, Herman Leibovich, Anthony Green, Ron Avrahami, Eyal Zussman, Arnon Siegmann, Dov Sherman*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Laboratory scale carbon/epoxy laminates were interleaved with electrospun Nylon 66 nanofibrilmat reinforced with multi wall carbon nanotubes (MWCNTs). The effect of the MWCNTs on the fracture energy was evaluated under Mode I and Mode II loading. It is shown that while nanofibrilmat interleaving resulted in a 3 times increase of the Mode I fracture energy compared to the non-interleaved laminates and the MWCNT reinforced nanofibrilmat interleaving resulted in a 4 times increase. Evaluation of the Mode II fracture energy indicated a 40% increase as a result of nanofibrilmats interleaving, while MWCNT reinforced nanofibrilmat interleaving resulted in a 60% increase. Mechanisms for the fracture energy increase of the MWCNT reinforced nanofibrilmats are suggested based on the test data and fractographic study of post-test specimen surfaces.

Original languageEnglish
Pages (from-to)48-56
Number of pages9
JournalComposites Science and Technology
Volume90
DOIs
StatePublished - 10 Jan 2014
Externally publishedYes

Keywords

  • A. Carbon nanotubes
  • A. Hybrid composites
  • A. Laminate
  • B. Fracture
  • B. Interface

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