Damage tolerance of carbon/flax hybrid composites subjected to low velocity impact

Sarasini, Fabrizio; Tirillò, Jacopo; D'Altilia, Simone; Valente, Teodoro; Santulli, Carlo; Touchard, Fabienne; Chocinski–Arnault, Laurence; Mellier, David; Lampani, Luca; Gaudenzi, Paolo

doi:10.1016/j.compositesb.2016.01.050

Cited by 196 publications

(123 citation statements)

References 42 publications

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“…This behavior is due to an improved compliance and to the development of a significant internal damage, as confirmed by the presence of an extended plateau at the peak load and the limited elastic recovery. Similar behaviors were obtained by Sarasini et al in flax/carbon laminates. The ANOVA analysis was performed on the peak load and the total energy averages.…”

Section: Resultssupporting

confidence: 89%

Hybrid biobased recyclable epoxy composites for mass production

et al. 2017

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Hybrid flax/carbon composites were studied in this artcle. The matrix used was developed using a sustainable green epoxy monomer cured by a novel cleavable amine. The combination of cleavable amine with green epoxy monomers led to a fully recyclable composite. The laminates were manufactured by using High Pressure Resin Transfer Molding with injection cycles down to 25 sec and cure cycles of 8 min at 120°C, followed by postcuring at 120°C for 1 h. The effect of the stacking sequence of the laminates was analyzed in terms of the tensile, flexural, and impact properties. A chemical recycling was also performed and the mechanical properties of the recovered thermoplastic measured. POLYM. COMPOS., 39:E2217–E2225, 2018. © 2017 Society of Plastics Engineers

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Section: Resultssupporting

confidence: 89%

Hybrid biobased recyclable epoxy composites for mass production

et al. 2017

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“…However, the tensile testing monitored via Digital Image Correlation shows that both hybrid composites with either carbon or flax outer plies possess a similar damage development with regard to the cracks and delamination. At the same time, in the stacking sequence carbon-flax-carbon, the failure starts earlier than in flax-carbon-flax, representing outer-inner-outer plies, respectively [15]. At the same time, the introduction of basalt fibers inside the carbon/flax composite with outer carbon plies and analysis of the tensile properties with regard to the changed stacking sequence inside the hybrid composite does not show any 8…”

Section: Tensile Propertiesmentioning

confidence: 88%

“…However, if a critical fiber mass fraction is reached, i.e., there is not enough polymer matrix to infiltrate the fibers and hold them together, the mechanical performance starts to decrease [34]. At the same time, generally, the high porosity of natural fibers makes it difficult to produce composites with high fiber content [15].…”

mentioning

confidence: 99%

“…Further detailed information on the curing and postcuring of epoxy is broadly available in the literature [38]. The overview presented in Table 4 shows that in the case of prepregs, the curing is generally realized in one step via pressure moulding at 130°C or 150°C for 45 or 60 min [9,13] or vacuum bagging and curing in autoclave at 120°C [15]. In the case of hand lay-up combined with pressure moulding, the curing varies quite considerably from onestep curing at 20°C for at least 7 h to curing in 4 steps, with a temperature range from 80°C to 150°C, which takes around 30 h. The curing during a single-step vacuum bagging, which is also known as a vacuum infusion process, commonly takes place in 2 steps with a maximum temperature of 90°C.…”

mentioning

confidence: 99%

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Review on Hybrid Carbon/Flax Composites and Their Properties

Shamsuyeva

Hansen

Endres

2019

International Journal of Polymer Science

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Numerous research studies are carried out in order to investigate various properties and implement the potential of hybrid carbon/flax composites for technical applications. This review aims to present a summary of materials and manufacturing techniques, which are currently used for the fabrication of the carbon/flax composites, and describe the reported tensile, bending, impact, and damping properties of the resulting hybrid materials as well as the attempts to model some of these properties.

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“…Much of the work reported in the literature about hybrid CF/flax composites [21][22][23][24][25] has been focused on the plies of woven fabric from continuous virgin CF and long flax fibres rather than nonwoven recycled short fibres as proposed in this work. Few studies have examined the wet-laying of short fibre composites with either flax fibres [26][27][28][29][30] or rCF [11][12][13]31,32].…”

Section: Introductionmentioning

confidence: 99%

Flexural Properties of Wet-Laid Hybrid Nonwoven Recycled Carbon and Flax Fibre Composites in Poly-Lactic Acid Matrix

Tse

Gong

et al. 2018

Aerospace

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Recycling carbon fibre is crucial in the reduction of waste from the increasing use of carbon fibre reinforced composites in industry. The reclaimed fibres, however, are usually short and discontinuous as opposed to the continuous virgin carbon fibre. In this work, short recycled carbon fibres (rCF) were mixed with flax and poly-lactic acid (PLA) fibres acting as the matrix to form nonwoven mats through wet-laying. The mats were compression moulded to produce composites with different ratios of rCF and flax fibre in the PLA matrix. Their flexural behaviour was examined through three-point-bending tests, and their morphological properties were characterised with scanning electron and optical microscopes. Experimental data showed that the flexural properties increased with higher rCF content, with the maximum being a flexural modulus of approximately 14 GPa and flexural strength of 203 MPa with a fibre volume fraction of 75% rCF and 25% flax fibre. The intimate mixing of the fibres contributed to a lesser reduction of flexural properties when increasing the flax fibre content.

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Damage tolerance of carbon/flax hybrid composites subjected to low velocity impact

Cited by 196 publications

References 42 publications

Hybrid biobased recyclable epoxy composites for mass production

Hybrid biobased recyclable epoxy composites for mass production

Review on Hybrid Carbon/Flax Composites and Their Properties

Flexural Properties of Wet-Laid Hybrid Nonwoven Recycled Carbon and Flax Fibre Composites in Poly-Lactic Acid Matrix

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