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   Articles with "elastic metamaterials" as a keyword



Intrinsically Polar Elastic Metamaterials.

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recommendations! Published in 2017 at "Advanced materials"

DOI: 10.1002/adma.201700540

Abstract: In many applications, one needs to combine materials with varying properties to achieve certain functionalities. For example, the inner layer of a helmet should be soft for cushioning while the outer shell should be rigid… read more here.

Keywords: polar elastic; layer; topology; material ... See more keywords

Inverse band gap design of elastic metamaterials for P and SV wave control

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recommendations! Published in 2020 at "Computer Methods in Applied Mechanics and Engineering"

DOI: 10.1016/j.cma.2020.113263

Abstract: Abstract We describe a systematic approach for engineering the dispersive properties of elastic metamaterials in order to band-gap, at user-defined frequency ranges, the propagation of elastic waves, accounting simultaneously for both P and SV waves.… read more here.

Keywords: band gap; band; wave control; elastic metamaterials ... See more keywords
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Topology optimization of anisotropic broadband double-negative elastic metamaterials

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recommendations! Published in 2017 at "Journal of The Mechanics and Physics of Solids"

DOI: 10.1016/j.jmps.2017.04.009

Abstract: Abstract As the counterpart of electromagnetic and acoustic metamaterials, elastic metamaterials are artificial periodic elastic composite materials offering the possibility to manipulate elastic wave propagation in the subwavelength scale through different mechanisms. For the promising… read more here.

Keywords: negative effective; anisotropic; double negative; topology ... See more keywords
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Amplitude-induced bandgap: New type of bandgap for nonlinear elastic metamaterials

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recommendations! Published in 2020 at "Journal of The Mechanics and Physics of Solids"

DOI: 10.1016/j.jmps.2020.103930

Abstract: Abstract In this paper, we report a new type of bandgap phenomenon called “amplitude-induced bandgap”, which is induced by amplitude in nonlinear metamaterials. Generally, bandgap phenomena in elastic metamaterials or phononic crystals have been achieved… read more here.

Keywords: bandgap; new type; induced bandgap; type bandgap ... See more keywords
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Theoretical investigation of magneto-electro-elastic metamaterials

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recommendations! Published in 2020 at "Solid State Communications"

DOI: 10.1016/j.ssc.2020.113850

Abstract: Abstract The properties of the multi-field coupling phonon-polaritons in magneto-electro-elastic metamaterials are studied theoretically on the base of the theory of the phonon-polaritons in the piezoelectric superlattices. The mechanism for multi−field coupling is analyzed. We… read more here.

Keywords: electro elastic; elastic metamaterials; field coupling; multi field ... See more keywords
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Tunable photo-responsive elastic metamaterials

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recommendations! Published in 2020 at "Nature Communications"

DOI: 10.1038/s41467-020-16272-y

Abstract: The metamaterial paradigm has allowed an unprecedented space-time control of various physical fields, including elastic and acoustic waves. Despite the wide variety of metamaterial configurations proposed so far, most of the existing solutions display a… read more here.

Keywords: frequency; responsive elastic; tunable photo; elastic metamaterials ... See more keywords

SH wave propagation in joined half-spaces composed of elastic metamaterials

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recommendations! Published in 2017 at "Journal of Applied Physics"

DOI: 10.1063/1.4994611

Abstract: Based on the effective-medium theory, the propagation of a shear horizontal (SH) wave in joined half-spaces composed of elastic metamaterials (EMMs) is investigated. From the dispersion relations, the effects of negative effective-medium parameters on the… read more here.

Keywords: propagation; joined half; half spaces; composed elastic ... See more keywords

In situ switchable local resonance in elastic metamaterials through bistable topological transformation

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recommendations! Published in 2023 at "Applied Physics Letters"

DOI: 10.1063/5.0152525

Abstract: We report a topology-transformable resonator with two distinct stable states, one kinematically determinate and endowed with nearly rigid-body motion at low-frequencies, and the other accompanied by a floppy pseudo zero-energy mode capable of showing low-frequency… read more here.

Keywords: local resonance; situ switchable; resonance; topological transformation ... See more keywords

Elastic wave propagation in the elastic metamaterials containing parallel multi-resonators

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recommendations! Published in 2019 at "Journal of Physics D: Applied Physics"

DOI: 10.1088/1361-6463/ab2dba

Abstract: This paper presents the modeling technique, design method, a new working mechanism and influence factors for elastic metamaterials (EMs) with parallel multi-resonators for broadband elastic vibration suppression. The general formula of the effective mass is… read more here.

Keywords: parallel multi; mass; elastic metamaterials; band gaps ... See more keywords

Deep neural network-based method for designing tunable band gaps metamaterials based on shape memory alloy embedded perforated elastic metamaterials

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recommendations! Published in 2024 at "Smart Materials and Structures"

DOI: 10.1088/1361-665x/ad9fbf

Abstract: This paper proposes deep neural networks (DNNs)-based optimization strategy for elastic metamaterials. It aims to attain excellent tunable elastic wave attenuation performance of shape memory alloy (SMA) embedded perforated plates by optimizing the shapes of… read more here.

Keywords: elastic metamaterials; embedded perforated; deep neural; shape memory ... See more keywords

Realizing topological edge states in graphenelike elastic metamaterials

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recommendations! Published in 2024 at "Physical Review Applied"

DOI: 10.1103/physrevapplied.21.054015

Abstract: The study of topological states in electronic structures, which allows robust transport properties against impurities and defects, has been recently extended to the realm of elasticity. This work shows that nontrivial topological flexural edge states… read more here.

Keywords: elastic metamaterials; edge; realizing topological; edge states ... See more keywords