Impact response of glass/epoxy laminate interleaved with nanofibrous mats

Saghafi, Hamed; Palazzetti, Roberto; Zucchelli, Andrea; Minak, Giangiacomo

doi:10.5267/j.esm.2013.09.002

Cited by 28 publications

(11 citation statements)

References 8 publications

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“…Glass fibers received even more attention than carbon, and among the papers here considered, only one showed negative results [75]. In [64] and [51], plain and curved glass-fiber specimens have been tested, respectively, showing positive results in terms of absorbed energy (+9,5% and +13,4%, depending on the thickness of the nanomat) and damaged area (-27%). In [29,49], the same authors present interesting studies using different types of nanofibers and different nanofiber orientation.…”

Section: Impactmentioning

confidence: 96%

Electrospun nanofibers as reinforcement for composite laminates materials – A review

Palazzetti

Zucchelli

2017

Composite Structures

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137

113

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In the last few decades nanofibers have been developed and introduced in a vast number of industrial and research applications. One of their most effective use is as interleaved reinforcement for composite laminate materials against delamination. Nanofibrous mats have the ideal morphology to be embedded between two plies of a laminate, and a vast and deep research has been carried out investigating their effect on the global behaviour of a composite laminate. This review is the first of its kind to date which presents a detailed state-ofthe-art on the effect of nanofibrous interleaves into composite laminates with focus on the mechanical performances and behaviours of nanomodified materials. A detailed description of the working mechanisms of the nanointerleave under different load cases is presented, and a comparative analysis between papers in literature will provide readers with a powerful tool to understand and use nanofibers for reinforcing purposes.

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Section: Impactmentioning

confidence: 96%

Electrospun nanofibers as reinforcement for composite laminates materials – A review

Palazzetti

Zucchelli

2017

Composite Structures

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137

113

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“…Carbon nanofibers/nanotubes (CNFs/CNTs) proved to be the most effective solution in terms of mechanical reinforcement [10][11][12], but their difficult mixing process with the resin [13] and serious risks for human health [14] make them unsuitable in many cases. Polymers present several advantages compared to CNF/CNT, and the authors of present paper have a successful history of reinforcing composite laminates' interfaces using polymeric nanofibers [15][16][17][18], in particular Nylon 6,6 [19][20][21][22][23]. The academic community produced accurate research on nanomodified composites, but some aspects still need to be further investigated: in particular this paper aims to study nanointerleaved laminates subjected to cycling loads, which is a topic for only few papers can be found in literature [10][11][12]24].…”

Section: Introductionmentioning

confidence: 98%

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

Brugo

Minak

Zucchelli

et al. 2017

Composite Structures

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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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“…Although the idea is not new, there has been increasing attention devoted to this topic in recent years. Various types of polymeric nanofibres such as poly caprolactone (PCL) [8], polyacrylonitrile (PAN) [9], polyamide (PA) [10], polyamide 6/6 (PA 6/6) [11], polyvinylidene fluoride (PVDF) [12] and polysulfone PSF [13] have already been studied. Most of these studies mainly focused on the interlaminar fracture toughness of composite laminates.…”

Section: Introductionmentioning

confidence: 99%

Modification of Carbon Fibre/Epoxy Composites by Polyvinyl Alcohol (PVA) Based Electrospun Nanofibres

Beylergi̇l

Tanoğlu

Aktaş

2016

Advanced Composites Letters

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In this study, the effects of modifying interlaminar region of unidirectional carbon fibre/epoxy composites by the incorporation of electrospun polyvinyl alcohol (PVA) nanofibres were investigated. PVA nanofibres were directly deposited onto the carbon fabrics by electrospinning method to improve mechanical performance of those composites. The features of the electrospun nanofibres were characterized by microscopy techniques. The unidirectional carbon fibre/epoxy composite laminates with/without PVA nanofibre interlayers were manufactured by vacuum-infusion technique in a [0] 4 configuration. Tensile, three-point bending, compression, Charpy-impact and Mode-I fracture toughness tests (Double Cantilever Beam (DCB)) were carried out in accordance with ASTM standards to evaluate mechanical performance of the composites. Scanning electron microscopy (SEM) observations were made on the specimens to evaluate microstructural features. It was observed that the carbon fabrics were successfully coated with a thin layer of PVA nanofibres by electrospinning technique. The results showed that PVA nanofibres improve the mechanical properties of unidirectional carbon/epoxy composite laminates when subjected to in-plane loading. On the other hand, PVA nanofibres slightly reduced the mode-I fracture toughness values although they led to more stable crack propagation.

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Impact response of glass/epoxy laminate interleaved with nanofibrous mats

Cited by 28 publications

References 8 publications

Electrospun nanofibers as reinforcement for composite laminates materials – A review

Electrospun nanofibers as reinforcement for composite laminates materials – A review

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

Modification of Carbon Fibre/Epoxy Composites by Polyvinyl Alcohol (PVA) Based Electrospun Nanofibres

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