Tunable bandgaps in a deployable metamaterial

Nanda, Aditya; Karami, M. Amin

doi:10.1016/j.jsv.2018.03.015

Cited by 36 publications

(13 citation statements)

References 51 publications

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“…Their structuredependent features can be tailored and optimized in accordance with specific requirements, making them a good candidate to solve engineering problems of different nature. [154,155] The study of origami-based metamaterials is motivated by the observation that origami patterns have the capability to enable the design of materials with enhanced mechanical properties, [156][157][158][159][160][161] acoustic properties, [162,163] and shapes that can adapt in response to environmental stimuli. [164] Wickeler and Naguib investigated the modeling process and mechanical testing of two novel origami-based metamaterials (Figure 13a).…”

Section: Metamaterialsmentioning

confidence: 99%

Engineering Origami: A Comprehensive Review of Recent Applications, Design Methods, and Tools

et al. 2021

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Origami-based designs refer to the application of the ancient art of origami to solve engineering problems of different nature. Despite being implemented at dimensions that range from the nano to the meter scale, origami-based designs are always defined by the laws that govern their geometrical properties at any scale. It is thus not surprising to notice that the study of their applications has become of cross-disciplinary interest. This article aims to review recent origami-based applications in engineering, design methods and tools, with a focus on research outcomes from 2015 to 2020. First, an introduction to origami history, mathematical background and terminology is given. Origami-based applications in engineering are reviewed largely in the following fields: biomedical engineering, architecture, robotics, space structures, biomimetic engineering, fold-cores, and metamaterials. Second, design methods, design tools, and related manufacturing constraints are discussed. Finally, the article concludes with open questions and future challenges.

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Section: Metamaterialsmentioning

confidence: 99%

Engineering Origami: A Comprehensive Review of Recent Applications, Design Methods, and Tools

et al. 2021

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“…One way to address this engineering challenge is to develop a structure whose properties adapt to external conditions such as deformation, applied load, applied temperature, and/or humidity. This concept of tunable metamaterials or phononic crystals has been explored in recent literature using deformations [7][8][9], applied loads [10], temperature-sensitive materials [11][12][13][14][15], topological transformation of structures [16][17][18], applied voltage to control the thickness and tension in elastomers [19,20], magneto-granular materials [21] and magnetoelastic mate-rials [22,23]. While prior work has shown the ability to open, close, and generally tune band gaps with a variety of mechanisms, we instead focus on a method to tune the band gaps in a specified direction by analyzing the mode shapes of the meta-structure, given the ability to tune the modulus of the meta-structure constituents with an applied temperature.…”

Section: Introductionmentioning

confidence: 99%

Thermally tunable band gaps in architected metamaterial structures

Nimmagadda

Matlack

2019

Journal of Sound and Vibration

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“…In addition to the active metamaterials with smart materials, tunable metamaterials can also be realized by passive means. [13][14][15][16][17][18] For example, by imposing mechanical deformation, a given bandgap can be adaptively tuned or switched on and off with buckling elastic beams. 14 With large deformations of curved beams subjected to prestrain in a honeycomb structure, tunable dispersion properties of elastic metamaterials can be achieved.…”

Section: Introductionmentioning

confidence: 99%

Tunable elastic metamaterials using rotatable coupled dual-beam resonators

Chuang

Ertürk

2019

Journal of Applied Physics

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We present the theoretical background, finite element and spectral element analyses, and experimental validation of a new class of tunable elastic metamaterials which leverage coupled dual-beam resonators that cancel in-phase bending vibration of each beam section. For a metamaterial with an array of rotatable single-beam resonators, we first show that the orthogonal bending modes of each resonator merely cause the shrinkage of one bandgap and the expansion of the other with changing resonator angle. Then, by simply rotating the coupled dual beams while keeping the joint tip mass stationary, we demonstrate that the bandgap of the host elastic metamaterial with an array of coupled dual-beam resonators can be continuously tuned over a wide range of frequencies. While canceling the undesired lateral bending motions, we enable tunable elastic metamaterials through altering the moment of inertia of the beam-type resonator attachments. Continuous bandgap tuning over a broad frequency range is validated experimentally, yielding a 42% change in the starting frequency of the bandgap as the coupled dual-beam resonators are rotated from 0 to 90. Although passive tuning is considered in our work, active components can be incorporated in the proposed design to enable adaptive tuning as well as time-varying behavior.

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Tunable bandgaps in a deployable metamaterial

Cited by 36 publications

References 51 publications

Engineering Origami: A Comprehensive Review of Recent Applications, Design Methods, and Tools

Engineering Origami: A Comprehensive Review of Recent Applications, Design Methods, and Tools

Thermally tunable band gaps in architected metamaterial structures

Tunable elastic metamaterials using rotatable coupled dual-beam resonators

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