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Effect of hybridization on the mode II fracture toughness properties of flax/vinyl ester composites

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In this study, flax fiber reinforced and flax/basalt hybridized vinyl ester composites were produced and their interlaminar fracture toughness (mode II) behavior was investigated using the three-point bend end-notched flexural (3ENF) testing. From the results, the average of the maximum values for each group of specimen obtained for critical strain energy release rate GIIC and stress intensity factor KII for flax/vinyl ester specimens were 1940 J/m2 and 134 kPam0.5. Similarly, GIIC and KII values recorded for hybridized specimens were 2173 J/m2 and 178 kPam0.5 respectively. The results for the flax/basalt hybridized composites exhibited an improved fracture toughness behavior compared to flax/vinyl ester composites without hybridization. The cohesive zone modelling (CZM) was also used to predict the delamination crack propagation in mode-II in laminated composite structures. After the experimental study, the 3ENF specimens were modelled and simulated using ANSYS. The CZM/FEA results were in reasonable agreement with the experimental results.
Original languageEnglish
JournalPolymer Composites
DOIs
Publication statusEarly online - 10 Aug 2015

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  • Effect_of_hybridization_on_the_mode_II_fracture_toughness_properties_of_flax_vinyl_ester_composites

    Rights statement: This is the peer reviewed version of the following article: Almansour, F.A., Dhakal, H.N., Zhang, Z.Y. and Ghasemnejad, H. (2015), Effect of hybridization on the mode II fracture toughness properties of flax/vinyl ester composites. Polym Compos, which has been published in final form at 10.1002/pc.23743. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.

    Accepted author manuscript (Post-print), 1.93 MB, Word document

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