Effects of fiber properties on aerodynamic performance and structural sizing of composite aircraft wings

Date, Shugo; Y, Abe; Okabe, Tomonaga

doi:10.1016/j.ast.2022.107565

Cited by 18 publications

(4 citation statements)

References 19 publications

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“…Due to their excellent mechanical properties, continuous fibers reinforced polymer matrix laminated composites (CFRPs) are widely used in industries for designing vital structures. A part from the monopoly of thermoset composites (TD) in aeronautics as structural parts, 1 those with thermoplastic matrix (TP), much more ecological and recyclable 2 will be more valued in the transport sector with regard to the European directive 2000/53/EC 3 . Kroll et al 4 have presented TPs as structures with great potential now involved in the design of primary or secondary parts in the automotive.…”

Section: Introductionmentioning

confidence: 99%

Effect of reparation on the mechanical behavior of glass fibers/Elium acrylic laminate composites: Experimental and numerical approaches

Koumba,

Boumbimba,

Bonfoh

et al. 2024

Polymer Composites

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Elium® Acrylic/Glass Fiber thermoplastic laminate composites are liable to develop irreversible local defects under quasi‐static loading. To reinforce the damaged material, repair is a cost‐effective mechanical alternative. The present study investigates the tensile behavior of an Elium® glass‐fiber‐based acrylic laminate composite panel, repaired by vacuum bonding with Elium® repair resin and double overlap of external patches (DP). The results obtained for all repaired laminate composites E190/GF_D(10, 20, 30)R with diameters 10, 20, and 30 mm showed an improvement in the mechanical properties of the repaired panels, compared with the drilled and pristine samples. Average load recovery rates were significant for E190/GF_D10R (7.9%, 3.55%, 13%) E190/GF_D20R (23%, 18%, 3.32%), E190/GF_D30R (7.2%, 9.36%, 32.37%) at strain rates of 0.001, 0.01, and 0.05 s−1 respectively. Finite element (FE) models for the virgin, drilled, and repaired composite, performed by coupling the Hashin criteria with the cohesive zone model (CZM), provided a relevant prediction of intra‐ and interlaminar failures of these woven laminated composites.Highlights The effect of vacuum bonding repair with Elium E351 EOT resin was studied. Symmetrical repair of acrylic laminate drilled by fiberglass patches. Tensile strength of the repaired laminates was investigated. Intra‐ and interlaminar damage was predicted by finite elements modeling.

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Section: Introductionmentioning

confidence: 99%

Effect of reparation on the mechanical behavior of glass fibers/Elium acrylic laminate composites: Experimental and numerical approaches

Koumba,

Boumbimba,

Bonfoh

et al. 2024

Polymer Composites

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“…Most sustainable material research focuses on the structural design of a plate, beam, or aircraft wing [27,28] with a mechanical performance analysis [29], failure analysis [30], optimization [31], and impact damage assessment [32]. Research on 3DAM for wing structures is focused on aircraft wings [33][34][35][36] rather than ship propellers, whose geometry is more complicated. Only Herath et al [37] have used hydrofoil geometry in their study, but some modifications were made to the wing geometry since the geometry was not suitable for production with composite material.…”

Section: Introductionmentioning

confidence: 99%

Improving the Flexibility of Ship Propellers Additively Manufactured from High-Density Polyethylene/Long Carbon Fiber Composites by Prepreg Coating

Neşer,

Sözen,

Doğru

et al. 2024

Polymers

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In efforts to achieve the goal of reducing ship emissions in the fight against climate change, reducing fuel consumption by making ships lighter is stated as one of the solutions. In this study, the possibilities of making composite equivalents of propellers, which are the most complex ship elements and traditionally produced from metal materials, are investigated with the advantages of additive manufacturing, which offers a rapid production opportunity for such forms. In this way, a lighter composite propeller and, therefore, a lighter ship will be achieved, and negative environmental impacts, especially harmful emissions, will be reduced. In the study, a 1/14-scale ship propeller was produced through the material extrusion method of additive manufacturing using an HDPE composite containing long carbon fiber with a 15% weight fraction. An attempt to reduce flexibility with an epoxy-carbon fabric prepreg coating was made, as the flexibility has negative effects on the performance of the produced propeller. The propeller tunnel test showed that the applied carbon fabric epoxy prepreg helped to improve the propeller’s performance by decreasing the flexibility of the propeller and reducing the deformation at the tips. At the same time, the propeller weight was decreased by 60% compared to its metal counterparts.

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“…Carbon fiber reinforced plastic (CFRP) is widely used in the aerospace 1 and automotive 2 industries due to its lightweight, high specific strength, low cost, and ease forming characteristics. However, the lower strength of laminated structures in the thickness direction makes them highly susceptible to impact load, resulting in complex failure of the internal structure caused by barely visible impact damage.…”

Section: Introductionmentioning

confidence: 99%

An investigation into the impact resistance of bio‐inspired laminates with interlayer hybrid unidirectional/woven carbon fibers

Zhao,

Yin,

Zhang

2023

Polymer Composites

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This study investigates the rapid mandible strike behavior of trap‐jaw ants (Odontomachus monticola), a highly aggressive species of terrestrial social organisms. An impact‐resistant gradient waviness structure is discovered in the mandibles of trap‐jaw ants. The gradient waviness structure is incorporated into the fiber laminates to enhance their impact resistance and damage tolerance. Bioinspired interlayer hybrid laminates with both unidirectional and woven arrangements were fabricated using the mold press forming technique. The impact resistance and damage tolerance of the bionic laminates are investigated through low‐velocity impact, ultrasonic C‐scanning, and compression after impact tests. The results indicate that hybrid laminates play a key role in limiting damage propagation and improving energy dissipation capacity. The hybrid configuration effectively mitigates crack propagation, enhances load‐bearing capacity, and improves residual compressive strength. Bionic laminates offer an efficient solution for enhancing damage tolerance against through‐the‐thickness loads.Highlights An impact‐resistant gradient waviness structure is discovered in trap‐jaw ants. Bioinspired interlayer hybrid laminate is fabricated by mold pressing. The hybrid laminate restrict damage propagation and improve residual strength. Bionic laminate offer an efficient solution for enhancing damage tolerance.

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Effects of fiber properties on aerodynamic performance and structural sizing of composite aircraft wings

Cited by 18 publications

References 19 publications

Effect of reparation on the mechanical behavior of glass fibers/Elium acrylic laminate composites: Experimental and numerical approaches

Effect of reparation on the mechanical behavior of glass fibers/Elium acrylic laminate composites: Experimental and numerical approaches

Improving the Flexibility of Ship Propellers Additively Manufactured from High-Density Polyethylene/Long Carbon Fiber Composites by Prepreg Coating

An investigation into the impact resistance of bio‐inspired laminates with interlayer hybrid unidirectional/woven carbon fibers

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