Mechanical characterization of a new Kevlar/Flax/epoxy hybrid composite in a sandwich structure

Sarwar, Ahmed; Mahboob, Ziauddin; Zdero, Radovan; Bougherara, Habiba

doi:10.1016/j.polymertesting.2020.106680

Cited by 52 publications

(56 citation statements)

References 50 publications

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“…Various studies are available in which the favourable properties of combining different materials or types of fibres have been investigated. For example, flax and carbon [ 30 , 31 , 32 , 33 , 34 ], flax and basalt [ 29 , 35 , 36 ], flax and graphite [ 37 ] flax and Kevlar [ 38 ] and flax and glass [ 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 ] were hybridised. If glass as outer layers and a flax core are used in the hybrid material, water absorption can be significantly reduced compared to a pure flax composite [ 40 , 45 ].…”

Section: Introductionmentioning

confidence: 99%

“…Various studies are available in which the favourable properties of combining different materials or types of fibres have been investigated. For example, flax and carbon [29][30][31][32][33], flax and basalt [34][35][36], flax and graphite [37] flax and Kevlar [38] and flax and glass [39][40][41][42][43][44][45][46][47][48][49][50] were hybridised. If glass as outer layers and a flax core are used in The projects' ultimate goal is to produce a prototype of a leaf spring element for a bogie of a narrow-gauge railway, which is currently made of glass fibre-reinforced thermosets.…”

Section: Introductionmentioning

confidence: 99%

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Novel Low-Twist Bast Fibre Yarns from Flax Tow for High-Performance Composite Applications

et al. 2020

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The use of natural fibres for components subjected to higher mechanical requirements tends to be limited by the high price of high-quality semi-finished products. Therefore, the present study deals with the development of more cost-effective staple fibre yarns made from flax tow. In the subsequent processing stage, the yarns were processed into quasi-unidirectional (UD) fabrics. The results of the fibre characterisation along the process chain have shown that no significant mechanical fibre damage occurs after slivers’ production. Fibres prepared from yarns and fabrics show comparable characteristics. The yarns were processed to composites by pultrusion to verify the reinforcement effect. The mechanical properties were comparable to those of composites made from a high-quality UD flax roving. The fabrics were industrially processed into composite laminates using a vacuum infusion and an autoclave injection process (vacuum injection method in an autoclave). While impact strength compared to a reference laminate based on the UD flax roving was achieved, tensile and flexural properties were not reached. An analysis showed that the staple fibre yarns in the fabric show an undulation, leading to a reorientation of the fibres and lower characteristic values, which show 86–92% of the laminate made from the flax roving. Hybrid laminates with outer glass and inner flax layers were manufactured for the intended development of a leaf spring for the bogie of a narrow-gauge railroad as a demonstrator. The hybrid composites display excellent mechanical properties and showed clear advantages over a pure glass fibre-reinforced composite in lightweight construction potential, particularly flexural stiffness.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Novel Low-Twist Bast Fibre Yarns from Flax Tow for High-Performance Composite Applications

et al. 2020

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“…Riccio et al [87] performed a numerical analysis to predict the behavior of honeycomb core structures composed of flax fibers under impact. Sarwar et al [88] applied bending, tensile, compressive, torsion, Rockwell hardness, and water absorption tests to characterize the sandwich-type hybrid composite plates composed of flax/epoxy composite layers in the core and Kevlar/epoxy layer in the face sheets. Alsubari et al [89] investigated the quasi-static compression behavior of flax-reinforced PLA interlocking core sandwich panels.…”

Section: Sandwich Structures With Flax Fibers In the Face Sheetsmentioning

confidence: 99%

Review of literature on eco-friendly sandwich structures made of non-wood cellulose fibers

Kamarian

Song

2022

Jnl of Sandwich Structures & Materials

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In recent years, concerns about environmental pollution have led to the development of natural fiber sandwich structures as alternatives to petroleum-based ones. This paper reviews various studies on sandwich structures composed of non-wood cellulose-nature fibers. These fibers mainly include flax, hemp, jute, kenaf, sisal, coir, and bamboo. The studies are classified based on the type of fibers, the components in which they are used, and experimental tests/numerical investigations. Furthermore, a few suggestions for future research in the field of eco-friendly sandwich structures are made.

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“…Therefore, an asymmetrical geometry offset is given to the rectangular RF area in the margin zone. The properties of the material are taken from the manufacturer specifications and previous literature 33 and shown in Table 1. The plain weave fabric Kevlar 49 (style 550,013 � 13 yarns/ inch) is used for the analysis.…”

Section: Planar Membrane Reflector Antenna Configurationmentioning

confidence: 99%

Investigation on material combination technique to enhance the anti-wrinkle and anti-vibration characteristics of the planar membrane reflector

Shinde

Kumar

Upadhyay

2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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In recent trends, membrane structure has increased its applications in space missions due to its significant advantages, such as light in weight, higher folding and packaging efficiency, ease of deployment, and low on-Board volume requirement. The wrinkling and low natural frequency of vibration are the major problems with the membrane structure. This research presents a novel methodology of Kapton-Kevlar material combination for a planar membrane reflector to enhance anti-vibration and anti-wrinkling capabilities of the membrane structure. The comparative study is made for the wrinkle area, RMS error, and natural frequency of vibration with the employed approach. This study provides new insights into a material combination technique to increase performance characteristics of the space-borne membrane reflectors. The outcome of the wrinkling analysis is compared and found to be consistent with the method available in the literature. From the simulation results, it is observed that wrinkles are reduced, and the natural frequency of vibration is also increased significantly with the proposed method.

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Mechanical characterization of a new Kevlar/Flax/epoxy hybrid composite in a sandwich structure

Cited by 52 publications

References 50 publications

Novel Low-Twist Bast Fibre Yarns from Flax Tow for High-Performance Composite Applications

Novel Low-Twist Bast Fibre Yarns from Flax Tow for High-Performance Composite Applications

Review of literature on eco-friendly sandwich structures made of non-wood cellulose fibers

Investigation on material combination technique to enhance the anti-wrinkle and anti-vibration characteristics of the planar membrane reflector

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