Experimental Validation of the Transverse Shear Behavior of a Nomex Core for Sandwich Panels

Farooqi, M. I.; Nasir, Muhammad Ali; Ali, Hasimah; Ali, Youmna A.Y.

doi:10.1007/s11029-017-9653-0

Cited by 6 publications

(2 citation statements)

References 10 publications

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“…Along with the excellent effect of weight reduction ascribed to its low density, specific energy absorption ( E m ) is also predominantly exhibited in the bottom curve of Figure 4e ranging from 2.4 to 14.2 kJ g −1 . Compared with commercial Nomex honeycomb, [ 1b,23,24 ] the LIG‐enabled smart honeycomb could display comparable or even superior mechanical performance with all‐rounded shear, compressive, and energy‐absorption characteristics.…”

Section: Resultsmentioning

confidence: 99%

Stackable and Deployable Laser‐Induced Graphene Layers Toward the Flexible Manufacturing of Smart 3D Honeycombs with Multifunctional Performance

Gao,

Cao,

Luo

et al. 2024

Adv Funct Materials

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Smart honeycombs are becoming the novel structural strategy for next‐generation devices and equipments. Unfortunately, traditional surface‐coating, structural immersing, and 3D printing approaches still face significant challenges in combining structural customization and performance multifunctionality. Herein, a brand‐new processing strategy is developed to construct graphene‐based smart honeycombs by stacking and deploying laser‐induced graphene (LIG) layers with alternatively inserted adhesives. Through tuning key parameters, various LIG‐enabled smart honeycombs (LIG‐HC) can be assembled with scalable areal dimension and thickness, variable cell sizes and shapes, as well as patternable graphene clusters. By further understanding the process‐dependent structural stability and electrical conductivity, multifunctional characteristics are systematically explored, including anisotropic mechanical, electrical, piezoresistive, and electromagnetic performance. To finally demonstrate the unique honeycomb multifunctionally applied in fields of aviation, an intelligent LIG‐HC enabled aircraft‐wing model is representatively constructed for performing anti‐/de‐icing, high‐temperature warning, flame retardancy, pressure and vibration monitoring, as well as electromagnetic shielding and stealth.

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Section: Resultsmentioning

confidence: 99%

Stackable and Deployable Laser‐Induced Graphene Layers Toward the Flexible Manufacturing of Smart 3D Honeycombs with Multifunctional Performance

Gao,

Cao,

Luo

et al. 2024

Adv Funct Materials

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show abstract

“…In addition, the influences of the single-cell-wall thickness and double-cell-wall thickness on honeycomb structure strength were taken into consideration. 5 Based on the classic laminate theory, Meraghni et al. 6 proposed a method to calculate the equivalent out-of-plane elastic parameters of the honeycomb core.…”

Section: Introductionmentioning

confidence: 99%

Out-of-plane shear property analysis of Nomex honeycomb sandwich structure

Liu

Gao

2020

Journal of Reinforced Plastics and Composites

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Honeycomb sandwich structure finds immense applications in aerospace manufacturing and other similar fields. The Nomex honeycomb sandwich structural material exhibits a complex structure and boundary conditions, making it difficult to obtain exact solutions for the equivalent out-of-plane shear modulus and shear strength of the Nomex honeycomb using current analytical methods. To this end, based on the energy method, the Kelsey model is simplified in this paper. Then, distribution of the shear forces in the longitudinal and transverse directions of the Nomex honeycomb core is analysed using the simplified model. Considering the effect of the wall thickness of the honeycomb core on the ultimate strength, the analytical expressions of the out-of-plane shear modulus and shear strength of the Nomex honeycomb are proposed. The shear properties and failure process of the Nomex honeycomb in two directions are then analysed experimentally. The accuracy of the analytical expressions of the equivalent shear modulus and shear strength is verified experimentally. The equivalent out-of-plane shear modulus and shear strength of the honeycomb was demonstrated to be effectively predicted by the analytical approach.

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Ultrasonic longitudinal-torsional vibration-assisted cutting of Nomex® honeycomb-core composites

Xiang

Yao

et al. 2018

Int J Adv Manuf Technol

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Experimental Validation of the Transverse Shear Behavior of a Nomex Core for Sandwich Panels

Cited by 6 publications

References 10 publications

Stackable and Deployable Laser‐Induced Graphene Layers Toward the Flexible Manufacturing of Smart 3D Honeycombs with Multifunctional Performance

Stackable and Deployable Laser‐Induced Graphene Layers Toward the Flexible Manufacturing of Smart 3D Honeycombs with Multifunctional Performance

Out-of-plane shear property analysis of Nomex honeycomb sandwich structure

Ultrasonic longitudinal-torsional vibration-assisted cutting of Nomex® honeycomb-core composites

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