2018
DOI: 10.1016/j.compositesb.2018.07.032
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Mixed Mode delamination in carbon nanotube/nanofiber interlayered composites

Abstract: Laminated composites mostly suffer from layer separation and/or delamination, which may affect the stiffness, strength and lifetime of structures. In this study, we aim to produce micronscale thin carbon nanotubes (CNTs) reinforced adhesive nanofibrous interleaves and to explore their effectiveness when incorporated into structural composites. Neat polyvinyl butyral (PVB) and solutions containing low fractions of CNTs from 0.5 to 2 wt.% were electrospun directly onto carbon fiber prepregs. These interlayered l… Show more

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Cited by 49 publications
(24 citation statements)
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“…However, CNT reinforced laminates presented a cohesive failure with excessive shear deformation. Kaynan et al prepared composite nanofiber (Polyvinyl Butyrate/CNT) mats to interleave 16 layers carbon/epoxy prepreg to assess fracture toughness under mixed‐mode I + II testing regime (Figure C) . CNT ratio varied from 0.5, 1, and 2% and laminate was vacuum bagged above glass transition temperature of PVB.…”
Section: Mechanical Properties Of Electrospun Nanofiber Reinforced Comentioning
confidence: 99%
See 1 more Smart Citation
“…However, CNT reinforced laminates presented a cohesive failure with excessive shear deformation. Kaynan et al prepared composite nanofiber (Polyvinyl Butyrate/CNT) mats to interleave 16 layers carbon/epoxy prepreg to assess fracture toughness under mixed‐mode I + II testing regime (Figure C) . CNT ratio varied from 0.5, 1, and 2% and laminate was vacuum bagged above glass transition temperature of PVB.…”
Section: Mechanical Properties Of Electrospun Nanofiber Reinforced Comentioning
confidence: 99%
“…Crack path of (A) Woven and (B) UD specimens having 90 μm nanofiber layer tested under DCB arrangement, Copyright 2016. Reproduced with permission from Elsevier Ltd (C) Mixed‐Mode Bending test apparatus, Copyright 2018. Reproduced with permission from Elsevier Ltd [Color figure can be viewed at wileyonlinelibrary.com]…”
Section: Mechanical Properties Of Electrospun Nanofiber Reinforced Comentioning
confidence: 99%
“…butyral (PVB) nanofiber webs loaded with CNTs have resulted in two fold increase in fracture toughness of carbon fiber/epoxy composites under mixed Mode I + II loading. 40 Polypropylene nonwoven interleaves have been reported to increase the Mode-I initiation and propagation fracture toughness by 91.3% and 136%, respectively. 41 Similarly, nylon 6,6 nonwoven fabric has been reported to increase the Mode-I initiation and propagation fracture toughness of carbon fiber epoxy composites by 34% and 156%, respectively.…”
Section: Introductionmentioning
confidence: 99%
“…butyral (PVB) nanofiber webs loaded with CNTs have resulted in two fold increase in fracture toughness of carbon fiber/epoxy composites under mixed Mode I + II loading 40 . Polypropylene nonwoven interleaves have been reported to increase the Mode‐I initiation and propagation fracture toughness by 91.3% and 136%, respectively 41 .…”
Section: Introductionmentioning
confidence: 99%
“…They found that laminates with the sandwiched paper increased both mode I and mode II interlaminar toughness. Analogously, Kaynan et al developed micron-scale thin carbon nanotubes reinforced adhesive nano-fibrous interleaves, and used to produce interlayered CFR laminates [4]. Despite of resulting performances, manufacturing of interleaves in the shape of hierarchical fibres, papers or adhesive layers is not an easy step.…”
Section: Introductionmentioning
confidence: 99%