Development of adaptive pleated fiber reinforced plastic composites

Ashir, Moniruddoza; Hindahl, Jan; Nocke, Andreas; Cherif, Chokri

doi:10.1016/j.compscitech.2017.05.016

Cited by 19 publications

(11 citation statements)

References 17 publications

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“…Previous experiments suggested that the optimum pleat height and thickness of adaptive pleated FRPs are 10 mm each; this ensures comparably low SMA peel-off and more deformation of adaptive FRPs. A preceding study [25] revealed that the deformation of adaptive pleated FRPs behaves proportionally to the spacing between the two pleats. However, for this research aiming at the development of an adaptive morphing wing, a distance of 100 mm between two pleats was selected.…”

Section: Theoretical Concept For the Production Of An Adaptive Morphimentioning

confidence: 99%

Development of an adaptive morphing wing based on fiber-reinforced plastics and shape memory alloys

Ashir

Hindahl

Nocke

et al. 2019

Journal of Industrial Textiles

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The process of integrating smart materials into fiber-reinforced plastics has been used increasingly to create different high-performance products for lightweight applications. This paper presents the development of an adaptive morphing wing based on fiber-reinforced plastics with shape memory alloys integrated into the reinforcing fabrics. Two types of preforms with varying numbers of integrated weft yarns in shape memory alloys were manufactured for a wing structure on a weaving machine using the pleated woven fabric technology. Subsequently, the realized preforms were infiltrated by a thermoset matrix and characterized mechanically to derive a preferred variant. After developing the adaptive morphing wing, its deformation behavior was characterized by varying current flow and time through shape memory alloys. Results revealed that maximum deformation of the investigated adaptive morphing wing was achieved at a current flow and time of 1 A and 60 s, respectively.

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Section: Theoretical Concept For the Production Of An Adaptive Morphimentioning

confidence: 99%

Development of an adaptive morphing wing based on fiber-reinforced plastics and shape memory alloys

Ashir

Hindahl

Nocke

et al. 2019

Journal of Industrial Textiles

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“…In terms of actuator technology, the supplied electrical energy can be used to generate mechanical deformation. In shape memory alloys (SMA), the applied electrical energy combined with the intrinsic resistance of SMA causes temperature to increase, which in turn leads to a conversion in the crystal structure from martensite to austenite, thus generating large usable forces and strains [ 14 , 15 , 16 , 17 ]. In contrast, shape memory polymers do not have intrinsically conductive components, but they too are able to use electrical energy via the intermediate stage of thermal energy to perform mechanical work [ 18 , 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

Melt Spinning of Highly Stretchable, Electrically Conductive Filament Yarns

et al. 2021

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Electrically conductive fibers are required for various applications in modern textile technology, e.g., the manufacturing of smart textiles and fiber composite systems with textile-based sensor and actuator systems. According to the state of the art, fine copper wires, carbon rovings, or metallized filament yarns, which offer very good electrical conductivity but low mechanical elongation capabilities, are primarily used for this purpose. However, for applications requiring highly flexible textile structures, as, for example, in the case of wearable smart textiles and fiber elastomer composites, the development of electrically conductive, elastic yarns is of great importance. Therefore, highly stretchable thermoplastic polyurethane (TPU) was compounded with electrically conductive carbon nanotubes (CNTs) and subsequently melt spun. The melt spinning technology had to be modified for the processing of highly viscous TPU–CNT compounds with fill levels of up to 6 wt.% CNT. The optimal configuration was achieved at a CNT content of 5 wt.%, providing an electrical resistance of 110 Ωcm and an elongation at break of 400%.

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“…The advantage of integrating SMAs into reinforced fabrics in FRPs lies in the fact that they are commercially available in wire form with different diameters. In previous works [5,13–18] carried out by the authors, the modelling and simulation for the actuation behavior of SMAs in AFRPs as well as the development and electro-mechanical characterization of adaptive 3D FRPs were executed. In the case of these AFRPs, SMAs were integrated into reinforced fabrics using the tailored fiber placement method.…”

Section: Introductionmentioning

confidence: 99%

Development and mechanical properties of adaptive fiber-reinforced plastics

Ashir

Nocke

Cherif

2018

Journal of Industrial Textiles

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Textile-based lightweight structures offer various possibilities for the design of tailored structures by the selective choice of materials and their processing into textile semi-finished products and fiber-reinforced plastics. Lightweight structures with a high mechanical load capacity are feasible by developing fiber-reinforced plastics with adaptive properties that are able to adapt their characteristics, e.g. geometry or stiffness, to external influences. Thus, the application potential of fiber-reinforced plastics can be further expanded. In this paper, we present novel adaptive fiber-reinforced plastics based on textile semi-finished products with integrated shape memory alloys and their mechanical characterization. The shape memory alloy is textile technically integrated and converted into friction spun hybrid yarn. Next, the produced hybrid yarn is integrated with plain, twill and satin woven reinforcement fabric in the weft direction during the shedding operation in weaving. Adaptive fiber-reinforced plastics are developed by infusing textile semi-finished products. Subsequently, the mechanical characterization of the adaptive fiber-reinforced plastics is carried out. Results show that, by integrating shape memory alloys into adaptive reinforced fabrics, the mechanical performance of fiber-reinforced plastics can be tailored.

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Development of adaptive pleated fiber reinforced plastic composites

Cited by 19 publications

References 17 publications

Development of an adaptive morphing wing based on fiber-reinforced plastics and shape memory alloys

Development of an adaptive morphing wing based on fiber-reinforced plastics and shape memory alloys

Melt Spinning of Highly Stretchable, Electrically Conductive Filament Yarns

Development and mechanical properties of adaptive fiber-reinforced plastics

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