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

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Saghafi, Hamed and Zucchelli, Andrea and Minak, Giangiacomo and Palazzetti, Roberto (2014) The effect of interleaved composite nanofibrous mats on delamination behavior of polymeric composite materials. Composite Structures, 109 (1). pp. 41-47. ISSN 0263-8223 (https://doi.org/10.1016/j.compstruct.2013.10.039)

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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.

ORCID iDs

Saghafi, Hamed, Zucchelli, Andrea, Minak, Giangiacomo and Palazzetti, Roberto ORCID logoORCID: https://orcid.org/0000-0003-3813-4090;
CORE (COnnecting REpositories)