Improving Interlaminar Fracture Toughness and Impact Performance of Carbon Fiber/Epoxy Laminated Composite by Using Thermoplastic Fibers

Chen, Ling; Wu, Liwei; Jiang, Qian; Da, Tian; Zhong, Ziyi; Wang, Yan; Fu, Hao

doi:10.3390/molecules24183367

Cited by 13 publications

(13 citation statements)

References 36 publications

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“…Following Ramirez et al [36], other groups have shown a dependence of IFT on the areal density of the interleaving veil. A linear relationship up to a point between areal density of microfibre interleaves and IFT was reported by Chen et al [109] and Beylergil et al [92,110]. In general, we observe that IFT data from the literature usually show significantly higher increase in mode I and mode II fracture toughness for microfibre interleaves than nanofibre ones.…”

Section: Nanofibre Versus Microfibresupporting

confidence: 85%

Materials systems for interleave toughening in polymer composites

Vallack

Sampson

2022

J Mater Sci

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We review the literature describing the use of interleaves to increase interlaminar fracture toughness in fibre-reinforced polymer composites and hence to improve damage tolerance. From an analysis of data provided in the literature from the use of microfibre and nanofibre interleaves, we show that the performance of these widely researched systems is clearly differentiated when plotted against the mean coverage of the interleaf. Using a simple analysis, we suggest that this can be attributed to the influence of their porous architectures on the infusion of resin. We show also that the superior toughening performance of microfibre interleaves is only weakly influenced by the choice of fibre. We find also that the inclusion of carbon nanotubes within interleaves to deliver multifunctional composites can be optimised by using a hybrid system with microfibres. Graphical abstract

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Section: Nanofibre Versus Microfibresupporting

confidence: 85%

Materials systems for interleave toughening in polymer composites

Vallack

Sampson

2022

J Mater Sci

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“…Interleaving improved the threshold impact force by 60%, reduced the rate of impact damage growth rate to one-half with impact height, and also reduced the impact damage growth rate from 0.115 to 0.105 mm 2 /N with impact force. Recently, Chen et al 177 measured 92% and 300% increase in maximum load and elastic energy (difference between impact energy and absorbed energy) of CF/EP composites interleaved with polypropylene and polyimide fibers under low-velocity impact.…”

Section: Effects Of Interleaving On Various Properties Of Fiber-reinf...mentioning

confidence: 99%

Interleaving in Composites for High-Performance Structural Applications

Sasidharan

Anand

2022

Ind. Eng. Chem. Res.

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Fiber-reinforced polymer composites find extensive applications ranging from sporting goods to aircraft components. Nonetheless, the weak interlaminar properties of laminated composites impose challenges in the design of primary load-bearing structures. The incorporation of additives (e.g., particles, films, and fibers) can overcome these limitations, offering additional functionalities to composites. Interleaving in composites generally refers to the incorporation of materials at the interface between two fiber plies so as to improve various properties. Being a simple technique to integrate in the production line, interleaving is recognized as an industrially significant and commercially viable method of modifying laminated composites. In this Review, an effort to assess state-of-the-art research on interleaving is attempted. Methods, applications, and the influence of interleaves on various properties of composites are also discussed. Data from the most recent research works on interleaved composites are compiled in an attempt to aid and encourage further developments among industries and academia.

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“…However, the data for the laminates with short Kevlar fibers shows a wider scatter due to the uneven distribution of the Kevlar fibers, which probably comes from the manually spread method. Recently various commercial polymer films have been utilized as interleaving materials in CFRPs, such as chopped aramid fibers [16], polyimide and polypropylene fibers [17], polypropylene nonwoven fabric [18], silk fibers interleave [19] and resulted in varied success in the toughness improvement of the composites. However, the incorporation of commercial interleaf with insulating or soft fibers will lead to the reduction of the electrical conductivity of the laminates and possible decrease in-plane strength and modulus of the laminates [16] due to the high electrical insulation and weak mechanical properties of the polymer material in nature.…”

Section: Introductionmentioning

confidence: 99%

Improved Interlaminar Fracture Toughness and Electrical Conductivity of CFRPs with Non-Woven Carbon Tissue Interleaves Composed of Fibers with Different Lengths

Yang

Feng

et al. 2020

Polymers

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Non-woven carbon tissue (NWCT) with different fiber lengths was prepared with a simple surfactant-assistant dispersion and filtration method and used as interleaving to enhance both delamination resistance and electrical conductivity of carbon fiber reinforced plastics (CFRPs) laminates. The toughing effect of NWCT on both Mode I and Mode II interlaminar fracture of CFRPs laminate is dependent on length of fibers, where the shorter carbon fibers (0.8 mm) perform better on Mode I interlaminar fracture toughness improvement whereas longer carbon fibers (4.3 mm) give more contribution to the Mode II interlaminar fracture toughness increase, comparing with the baseline composites, and the toughness increase was achieved without compromising of flexural mechanical properties. More interestingly, comparing with the baseline composites, the electrical conductivity of the interleaved composites exhibited a significant enhancement with in-plane and through-the-thickness direction, respectively. Microscopy analysis of the carbon tissue interleaving area in the laminate indicated that carbon fibers with shorter length can form into a 3D network with more fibers aligned along through-the-thickness direction compared with longer ones. The shorter fibers thus potentially provide more effective fiber bridges, pull-out and matrix deformation during the crack propagation and improve the electric conductivity significantly in through-the-thickness direction.

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Improving Interlaminar Fracture Toughness and Impact Performance of Carbon Fiber/Epoxy Laminated Composite by Using Thermoplastic Fibers

Cited by 13 publications

References 36 publications

Materials systems for interleave toughening in polymer composites

Materials systems for interleave toughening in polymer composites

Interleaving in Composites for High-Performance Structural Applications

Improved Interlaminar Fracture Toughness and Electrical Conductivity of CFRPs with Non-Woven Carbon Tissue Interleaves Composed of Fibers with Different Lengths

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