An experimental study on the radar absorbing characteristics of folded core structures

Zhijin, Wang; Zhou, Chenxing; Khaliulin, V. I.; Shabalov, A.V.

doi:10.1016/j.compstruct.2018.03.106

Cited by 18 publications

(7 citation statements)

References 9 publications

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“…For the stealth technology, a reduction in RCS is mandatory to turn the target invisible to radar detection. The echo intensity can be reduced by using appropriate target shape that can reflect and/or diffract the incident wave in different directions from the radar [59,60]. Other techniques involve the use of radar absorbing materials [12,[58][59][60].…”

Section: Free Space Methodsmentioning

confidence: 99%

“…The echo intensity can be reduced by using appropriate target shape that can reflect and/or diffract the incident wave in different directions from the radar [59,60]. Other techniques involve the use of radar absorbing materials [12,[58][59][60]. The shape is considered the first step to RCS control.…”

Section: Free Space Methodsmentioning

confidence: 99%

“…Flat surfaces can be avoided as they fully reflect the incident wave. Serrated shapes or shapes different from plane promote dispersed radar waves [60].…”

Section: Free Space Methodsmentioning

confidence: 99%

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Conducting Polymeric Composites Based on Intrinsically Conducting Polymers as Electromagnetic Interference Shielding/Microwave Absorbing Materials—A Review

2021

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The development of sophisticated telecommunication equipment and other electro-electronic devices resulted in a kind of electromagnetic pollution that affects the performance of other equipment as well as the health of human beings. Intrinsically conducting polymers (ICP), mainly polyaniline and polypyrrole, have been considered as promising candidates for applications in efficient electromagnetic interference shielding (EMI) due to their ease of preparation, light weight, good conductivity and corrosion resistance. One of the important advantages of these materials is the capability to interact with the EM radiation through both absorption and reflection mechanisms thus enlarging the field of application. In this context, this review article describes a recent overview of the existing methods to produce intrinsically conducting polymers and their blends for electromagnetic shielding application. Additionally, it highlights the relationship between preparation methods reported in the literature with the structure and properties, such as electrical conductivity, electromagnetic shielding effectiveness (EMI SE), complex permittivity and permeability of these materials. Furthermore, a brief theory related to the electromagnetic mechanism and techniques for measuring the microwave absorbing properties are also discussed.

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Section: Free Space Methodsmentioning

confidence: 99%

Section: Free Space Methodsmentioning

confidence: 99%

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Conducting Polymeric Composites Based on Intrinsically Conducting Polymers as Electromagnetic Interference Shielding/Microwave Absorbing Materials—A Review

2021

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“…Rich designs in origami offer great freedom to design the performance of such folded core sandwich structures. [128][129][130][131][132][133][134][135][136][137][138][139][140][141][142][143][144][145][146][147] Typical origami patterns including Miura pattern, 19,20,[128][129][130][131] Resch's pattern, [132][133][134] Waterbomb pattern 135 and Yoshimura pattern. Inspired by Miura-folded origami pattern, Zhou et al 19,20,128 designed sandwich panel with V-pattern folded core and M-pattern folded core to perform as an integrated thermal protection system.…”

Section: Novel Core Structurementioning

confidence: 99%

“…The influences of various factors on the V-pattern folded core radar cross section (RCS) are investigated. 129 It is found that the folded core height has significant effects on the radar absorbing performance. Schenk and Guest 130 introduced two folded metamaterials based on Miura-ori fold pattern including a folded shell structure with NPR for in-plane deformations, and a cellular metamaterial with varying fold pattern within each layers.…”

Section: Core Structure Designmentioning

confidence: 99%

Creative design for sandwich structures: A review

Feng

Qiu

Gao

et al. 2020

International Journal of Advanced Robotic Systems

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Sandwich structures are important innovative multifunctional structures with the advantages of low density and high performance. Creative design for sandwich structures is a design process based on sandwich core structure evolution mechanisms, material design method, and panel (including core structure and facing sheets) performance prediction model. The review outlines recent research efforts on creative design for sandwich structures with different core constructions such as corrugated core, honeycomb core, foam core, truss core, and folded cores. The topics discussed in this review article include aspects of sandwich core structure design, material design, and mechanical properties, and panel performance and damage. In addition, examples of engineering applications of sandwich structures are discussed. Further research directions and potential applications are summarized.

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Experimental study of the ballistic resistance of micro‐bead modified epoxy resin filled S‐shaped folded sandwich panels

et al. 2022

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The proposed folding structure is inspired by origami, which has unique mechanical properties. To investigate the ballistic properties of the optimized S-shaped folded sandwich structure, micro-bead modified (HGB) epoxy resin was injected into S-shaped folded sandwich panels and high-velocity impact tests were conducted. The experimental results demonstrated that the damage pattern of the core determines the ballistic properties of the sandwich panel.And the node position's ballistic performance is superior to that of the base position. The modified resin improves the ballistic resistance of the sandwich panel and increases the weight of the sandwich structure. Moreover, the effect of the back-filled modified resin on the ballistic properties of the sandwich panel can counteract the negative effect of increased weight. While the frontfilled configuration may compromise the weight-related ballistic performance index of the sandwich structure. K E Y W O R D Sballistic impact, damage modes, folded sandwich structure, hollow glass beads, micro-bead modified resin

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An experimental study on the radar absorbing characteristics of folded core structures

Cited by 18 publications

References 9 publications

Conducting Polymeric Composites Based on Intrinsically Conducting Polymers as Electromagnetic Interference Shielding/Microwave Absorbing Materials—A Review

Conducting Polymeric Composites Based on Intrinsically Conducting Polymers as Electromagnetic Interference Shielding/Microwave Absorbing Materials—A Review

Creative design for sandwich structures: A review

Experimental study of the ballistic resistance of micro‐bead modified epoxy resin filled S‐shaped folded sandwich panels

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