A metal hybrid bistable composite tube for multifunctional and reconfigurable antenna

Guo, Xiangwei; Lin, Shu; Dai, Fuhong

doi:10.1016/j.compscitech.2022.109887

Cited by 16 publications

(11 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, we have detected duplications between figure 3 of this paper and figure 11 of a separate paper written by some of the same authors [1].…”

mentioning

confidence: 64%

“…% SiC to 10 WTt. % SiC despite being identical to the previous version.In addition, we have detected duplications between figure 3 of this paper and figure 11 of a separate paper written by some of the same authors [1].The evidence gathered by IOP Publishing following an investigation in line with the COPE guidelines has considerably reduced confidence in the work to the extent that IOP Publishing has made the decision to retract the work.…”

mentioning

confidence: 84%

“…The process parameters such as sliding speed within the range of [1][2][3][4] (m s −1 ), load (20N-80 N), filler content (0-20 wt%), and temperatures within the range of (°C) were considered while maintaining a fixed sliding distance of 1400 (m) to evaluate the coefficient of friction (COF) and wear resistance of the experimental specimens. The composite configurations and their respective control factors can be found in table 2.…”

Section: Sliding Wear Behavior Of Composite Materialsmentioning

confidence: 99%

“…Advanced composite materials have gained significant attention due to their exceptional properties, such as enhanced specific stiffness, low weight and high specific strength. This has led to rapid progress in their design and fabrication [1][2][3]. Metal Matrix Composites (MMCs) are composed of two or more materials and exhibit superior properties compared to the individual constituents.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

RETRACTED: Tribological and microstructure studies of LM26/SiC metal matrix composite materials and structures for high temperature applications

Pawar¹,

Gohari

Ahmed

et al. 2024

Mater. Res. Express

View full text Add to dashboard Cite

This study aimed to investigate the tribological and microstructural characteristics of LM26 composites reinforced with silicon carbide to evaluate their suitability for high-temperature applications. For the sample fabrication, the modified stir-casting method was optimized using a Taguchi L16 orthogonal array. The wear rate and friction behavior were evaluated using the Taguchi's S/N ratio analysis. When SiC was incorporated into the composite, the wear resistance increased by up to 15 wt. %. The wear resistance of the LM26/SiC composite was improved compared to that of the pure LM26 aluminum alloy. The results of this study provide useful information to improve the wettability of metal matrix composites made from commercial-grade LM26 aluminum alloy by adjusting the SiC weight percentage. This type of composite has the potential as a replacement material for traditional applications such as heat sinks, heat exchanger fins, and electronic packaging.

show abstract

“…In addition, we have detected duplications between figure 3 of this paper and figure 11 of a separate paper written by some of the same authors [1].…”

mentioning

confidence: 64%

mentioning

confidence: 84%

Section: Sliding Wear Behavior Of Composite Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

RETRACTED: Tribological and microstructure studies of LM26/SiC metal matrix composite materials and structures for high temperature applications

Pawar¹,

Gohari

Ahmed

et al. 2024

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…On the other hand, our presented design herein is advantageous over available work in the literature as we demonstrated a truly coupled performance between mechanical stability and electromagnetic performance, without resorting to any form of external actuation. On the other hand, existing passive and deployable reconfiguration of multifunctional antennas presented in the literature 50,51 do not exhibit the same capability in antenna performance as they focus on single parameter reconfiguration, typically the frequency of operation.…”

Section: Discussionmentioning

confidence: 99%

A multi-stable deployable quadrifilar helix antenna with radiation reconfigurability for disaster-prone areas

Bichara,

Costantine,

Tawk

et al. 2023

Nat Commun

View full text Add to dashboard Cite

In disaster-prone areas, damaged infrastructure requires impromptu communications leveraging lightweight and adaptive antennas. Accordingly, we introduce a bi-stable deployable quadrifilar helix antenna that passively reconfigures its radiation characteristics in terms of pattern and polarization. The proposed structure is composed of counter-rotating helical strips, connected by rotational joints to allow a simultaneous change in the helix height and radius. Each helical strip is composed of a fiber-reinforced composite material to achieve two stable deployed states that are self-locking. The reconfiguration between an almost omnidirectional pattern and a circularly polarized directive pattern enables the antenna to be suitable for both terrestrial and satellite communication within the L-band. More specifically, the presented design in infrastructure-less areas achieves satellite localization with directive circularly polarized waves and point-to-point terrestrial connectivity with an almost omnidirectional state. Hence, we present a portable, agile, and passively reconfigured antenna solution for low-infrastructure areas.

show abstract

Impact of joint boundary geometry on the mechanical behavior of variable‐diameter bistable composite structures

Li,

Luo,

Wang

et al. 2024

Polymer Composites

View full text Add to dashboard Cite

Variable‐diameter bistable composite structures with joint boundaries have significant potential for application in engineering, particularly in aerospace systems. This study focuses on analyzing the effects of joint boundary geometry, specifically the parameters of wavy boundaries, on the bending stiffness of these structures. To simplify the analysis, a beam model was established, with the joint boundary approximated as a rotational spring characterized by rotational stiffness. Using this model, the influences of wavy boundary geometric parameters, specifically the amplitude and wavelength, on the bending stiffness were systematically analyzed and compared against those of structures with straight joint boundaries. The findings indicate that larger amplitudes and suitable wavelengths can significantly enhance the bending stiffness, thereby improving the overall mechanical performance of the structure. The accuracy of the theoretical model was further verified through finite element numerical simulations. The experimental results demonstrated the practical influence of the wavy joint boundary parameters on the bending stiffness, underscoring the importance of the wavy boundary design in optimizing the performance of bistable structures, particularly in aerospace applications where an increased bending stiffness can contribute to lightweight and flexible structural designs. This work provides a theoretical foundation and practical guidance for the optimal design of variable‐diameter bistable composite structures.Highlights Investigated the impact of wavy spliced boundaries on the bending stiffness of bistable structures. A beam model for predicting the effect of the joint shape on the bending performance was developed. Compared with straight‐edge joints, irregularly spliced joints increased the peak bending load by 22%. The irregular joints had an MFS of 0.45, three times greater than that of the straight‐edge joints.

show abstract

A metal hybrid bistable composite tube for multifunctional and reconfigurable antenna

Cited by 16 publications

References 33 publications

RETRACTED: Tribological and microstructure studies of LM26/SiC metal matrix composite materials and structures for high temperature applications

RETRACTED: Tribological and microstructure studies of LM26/SiC metal matrix composite materials and structures for high temperature applications

A multi-stable deployable quadrifilar helix antenna with radiation reconfigurability for disaster-prone areas

Impact of joint boundary geometry on the mechanical behavior of variable‐diameter bistable composite structures

Contact Info

Product

Resources

About