Auxetic composites in aerospace engineering

Wang, Z.; Zulifqar, Adeel; Hu, Hong

doi:10.1016/b978-0-08-100037-3.00007-9

Cited by 54 publications

(33 citation statements)

References 48 publications

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“…They have synclastic property which means that they take dome shape when fixed on a curved surface rather than saddle shape in the case of conventional materials. Auxetic materials also have better impact and ballistic resistance due to the fact that in the event of an impact, the material flows toward the impact point unlike conventional materials which flow away from it [54]. These properties make auxetic composites quite attractive for automotive, aerospace, and civil engineering applications.…”

Section: D Auxetic Fabricsmentioning

confidence: 99%

Textile Reinforced Structural Composites for Advanced Applications

Karaduman¹,

Karaduman²,

Özdemir³

et al. 2017

Textiles for Advanced Applications

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Textile-reinforced composites are increasingly used in various industries such as aerospace, construction, automotive, medicine, and sports due to their distinctive advantages over traditional materials such as metals and ceramics. Fiber-reinforced composite materials are lightweight, stiff, and strong. They have good fatigue and impact resistance. Their directional and overall properties can be tailored to fulfill specific needs of different end uses by changing constituent material types and fabrication parameters such as fiber volume fraction and fiber architecture. A variety of fiber architectures can be obtained by using two-(2D) and three-dimensional (3D) fabric production techniques such as weaving, knitting, braiding, stitching, and nonwoven methods. Each fiber architecture/textile form results in a specific configuration of mechanical and performance properties of the resulting composites and determines the end-use possibilities and product range. This chapter highlights the constituent materials, fabric formation techniques, production methods, as well as application areas of textile-reinforced composites. Fiber and matrix materials used for the production of composite materials are outlined. Various textile production methods used for the formation of textile preforms are explained. Composite fabrication methods are introduced. Engineering properties of textile composites are reviewed with regard to specific application areas. The latest developments and future challenges for textile-reinforced composites are presented.

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Section: D Auxetic Fabricsmentioning

confidence: 99%

Textile Reinforced Structural Composites for Advanced Applications

Karaduman¹,

Karaduman²,

Özdemir³

et al. 2017

Textiles for Advanced Applications

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“…The current paper extends the previous study to auxetic patterns, known to yield a negative Poisson’s ratio [ 22 , 23 ]. Frequently used auxetic structures include re-entrant, chiral truss, and semi-rigid rotating patterns [ 24 , 25 ], and they have been applied in the medical field [ 25 ], sports [ 26 ], aerospace engineering [ 27 ], and for the design of piezoelectric strain sensors [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Auxetic Textured Soft Strain Gauge for Monitoring Animal Skin

Liu

Kollosche

Jin

et al. 2020

Sensors

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Recent advances in hyperelastic materials and self-sensing sensor designs have enabled the creation of dense compliant sensor networks for the cost-effective monitoring of structures. The authors have proposed a sensing skin based on soft polymer composites by developing soft elastomeric capacitor (SEC) technology that transduces geometric variations into a measurable change in capacitance. A limitation of the technology is in its low gauge factor and lack of sensing directionality. In this paper, we propose a corrugated SEC through surface texture, which provides improvements in its performance by significantly decreasing its transverse Poisson’s ratio, and thus improving its sensing directionality and gauge factor. We investigate patterns inspired by auxetic structures for enhanced unidirectional strain monitoring. Numerical models are constructed and validated to evaluate the performance of textured SECs, and to study their performance at monitoring strain on animal skin. Results show that the auxetic patterns can yield a significant increase in the overall gauge factor and decrease the stress experienced by the animal skin, with the re-entrant hexagonal honeycomb pattern outperforming all of the other patterns.

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“…[27,28] In addition, the auxetic fabrics have improved properties such as sound absorption, [5] crash resistance, [29] and impact resistance. [30,31] Thus, these special fabrics may be attractive for those applications where high protection against impact is required, such as sports impact, aerospace, [32] defense, and automobile. [33] These fabrics can be applied in road-safety applications to make the front and the back body of the car, which can help to reduce the impact during an accident by absorbing the energy.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Binding Yarn Float Length for 3D Auxetic Structures

Iftekhar

Khan

Nawab

et al. 2020

Physica Status Solidi (b)

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Recently, the auxetic fabrics have gained much importance in the scientific and industrial community due to their excellent impact-resistance property. Due to this property, they have several applications, including automotive, aerospace, and ballistic areas. The auxetic three-dimensional (3D) woven fabrics are a less explored domain in the auxetic community. Herein, special attention is given to the numerical analysis of the 3D auxetic structure. The negative Poisson's ratio of 3D auxetic structures is studied using ANSYS workbench structural analysis module. The effect of binding yarn float length on negative Poisson's ratio is tested on ten different 3D orthogonal through the thickness structures with binding yarn float length of 1:1, 2:1, and 3:1. Furthermore, the effect of the number of binding yarns and the number of layers is also studied numerically. The results show that the auxeticity of the woven structure increases with increasing the number of binding yarns and their float length. Moreover, decreasing the number of layers from 3 to 1 increases the auxeticity.

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Auxetic composites in aerospace engineering

Cited by 54 publications

References 48 publications

Textile Reinforced Structural Composites for Advanced Applications

Textile Reinforced Structural Composites for Advanced Applications

Numerical Investigation of Auxetic Textured Soft Strain Gauge for Monitoring Animal Skin

Numerical Analysis of Binding Yarn Float Length for 3D Auxetic Structures

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