Magnetically Actuated Reconfigurable Metamaterials as Conformal Electromagnetic Filters

Wu, Shu-Pao; Eichenberger, Jack; Dai, Jize; Chang, Yilong; Ghalichechian, Nima; Zhao, Ruike Renee

doi:10.1002/aisy.202270045

Cited by 15 publications

(7 citation statements)

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“…SMPs enable a wide variety of applications, across many different fields of research. One application of SMPs has been active metamaterials, [ 119,125,129,209 ] which can exhibit special mechanical properties. For example, Tao et al.…”

Section: Active Materials For Origami Actuationmentioning

confidence: 99%

Active Materials for Functional Origami

Leanza

Sun

et al. 2023

Advanced Materials

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In recent decades, origami has been explored to aid in the design of engineering structures. These structures span multiple scales and have been demonstrated to be used towards various areas such as aerospace, metamaterial, biomedical, robotics, and architectural applications. Conventionally, origami or deployable structures have been actuated by hands, motors, or pneumatic actuators, which can result in heavy or bulky structures. On the other hand, active materials, which reconfigure in response to external stimulus, eliminate the need for external mechanical loads and bulky actuation systems. Thus, in recent years, active materials incorporated with deployable structures have shown promise for remote actuation of light weight, programmable origami. In this review, active materials such as shape memory polymers and alloys, hydrogels, liquid crystal elastomers, magnetic soft materials, and covalent adaptable network polymers, their actuation mechanisms, as well as how they have been utilized for active origami and where these structures are applicable is discussed. Additionally, the state‐of‐the‐art fabrication methods to construct active origami are highlighted. The existing structural modeling strategies for origami, the constitutive models used to describe active materials, and the largest challenges and future directions for active origami research are summarized.This article is protected by copyright. All rights reserved

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Section: Active Materials For Origami Actuationmentioning

confidence: 99%

Active Materials for Functional Origami

Leanza

Sun

et al. 2023

Advanced Materials

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“…AM is most well known for on-demand fabrication of geometrically complex 3D shapes, some of which are impossible to create by using traditional manufacturing techniques. Meanwhile, advances in stimulus-responsive materials such as hydrogels, shape memory polymers, magneto-active materials, and liquid crystal elastomers (LCEs) have demonstrated unique promise for the fabrication of smart, responsive structures that have found widespread applications in biomedical devices, − soft robots, − and deployable structures. − When 3D-printed, smart materials can transform as a function of time, leading to a new paradigm of printing called 4D printing …”

Section: Introductionmentioning

confidence: 99%

Free-Form Liquid Crystal Elastomers via Embedded 4D Printing

McDougall,

Herman,

Huntley

et al. 2023

ACS Appl. Mater. Interfaces

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“…Similarly, electromagnetic waves are scattered into specific shapes, [ 7,8 ] cloaked, [ 8 ] steered, [ 9,10 ] or filtered. [ 11 ] Acoustic 2D metamaterials can also be engineered to filter, [ 12–14 ] isolate, [ 15,16 ] cloak, [ 17–19 ] regulate wave transmission, [ 20–22 ] as well as absorb, [ 23,24 ] or steer acoustic waves. [ 25–27 ]…”

Section: Introductionmentioning

confidence: 99%

Magneto‐Mechanical Bilayer Metamaterial with Global Area‐Preserving Density Tunability for Acoustic Wave Regulation

Sim

Dai

et al. 2023

Advanced Materials

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Abstract2D metamaterials have immense potential in acoustics, optics, and electromagnetic applications due to their unique properties and ability to conform to curved substrates. Active metamaterials have attracted significant research attention because of their on‐demand tunable properties and performances through shape reconfigurations. 2D active metamaterials often achieve active properties through internal structural deformations, which lead to changes in overall dimensions. This demands corresponding alterations of the conforming substrate, or the metamaterial fails to provide complete area coverage, which can be a significant limitation for their practical applications. To date, achieving area‐preserving active 2D metamaterials with distinct shape reconfigurations remains a prominent challenge. In this paper, magneto‐mechanical bilayer metamaterials are presented that demonstrate area density tunability with area‐preserving capability. The bilayer metamaterials consist of two arrays of magnetic soft materials with distinct magnetization distributions. Under a magnetic field, each layer behaves differently, which allows the metamaterial to reconfigure its shape into multiple modes and to significantly tune its area density without changing its overall dimensions. The area‐preserving multimodal shape reconfigurations are further exploited as active acoustic wave regulators to tune bandgaps and wave propagations. The bilayer approach thus provides a new concept for the design of area‐preserving active metamaterials for broader applications.

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Magnetically Actuated Reconfigurable Metamaterials as Conformal Electromagnetic Filters

Cited by 15 publications

References 0 publications

Active Materials for Functional Origami

Active Materials for Functional Origami

Free-Form Liquid Crystal Elastomers via Embedded 4D Printing

Magneto‐Mechanical Bilayer Metamaterial with Global Area‐Preserving Density Tunability for Acoustic Wave Regulation

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