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   Articles with "phononic crystals" as a keyword



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Nonlinear elastic switch based on solid–solid phononic crystals

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recommendations! Published in 2020 at "Journal of Materials Science"

DOI: 10.1007/s10853-020-04705-4

Abstract: Mass density nonlinearity in a solid–solid phononic crystal and its effect on phononic band gap tunability are investigated. Also, a phononic On–Off switch is designed based on nonlinear phononic crystals. The proposed switch is formed… read more here.

Keywords: band gap; solid phononic; phononic crystals; switch ... See more keywords
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Generalized thermoelastic band structures of Rayleigh wave in one-dimensional phononic crystals

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recommendations! Published in 2017 at "Meccanica"

DOI: 10.1007/s11012-017-0747-5

Abstract: In this paper, the band structures of TE (thermoelastic) Rayleigh wave in one-dimensional phononic crystals under steady-state thermal environment are investigated in the context of Green–Naghdi theory. The general solutions of the coupled equations are… read more here.

Keywords: rayleigh wave; wave one; phononic crystals; one dimensional ... See more keywords
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From Photonic Crystals to Seismic Metamaterials: A Review via Phononic Crystals and Acoustic Metamaterials

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recommendations! Published in 2021 at "Archives of Computational Methods in Engineering"

DOI: 10.1007/s11831-021-09612-8

Abstract: The advancement in electromagnetic metamaterials, which commenced three decades ago, experienced a rapid transformation into acoustic and elastic systems in the forms of phononic crystals and acoustic/elastic metamaterials. Since its early discovery, numerous wave phenomena… read more here.

Keywords: acoustic elastic; photonic crystals; crystals acoustic; phononic crystals ... See more keywords
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Extending and lowering band gaps by multilayered locally resonant phononic crystals

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recommendations! Published in 2018 at "Applied Acoustics"

DOI: 10.1016/j.apacoust.2017.12.012

Abstract: Abstract Locally resonant phononic crystals (LRPCs) have band gaps with low frequencies and the size of the cell is much smaller than the wave lengths of the band gaps. This unique property makes them good… read more here.

Keywords: phononic crystals; locally resonant; extending lowering; band gaps ... See more keywords
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Spectral variational multiscale model for transient dynamics of phononic crystals and acoustic metamaterials

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

DOI: 10.1016/j.cma.2019.112761

Abstract: Abstract In this manuscript, a spectral multiscale model is developed for transient elastic wave propagation in periodic composites. The basis of the multiscale approach is the variational multiscale enrichment method that permits analysis of wave… read more here.

Keywords: multiscale; phononic crystals; acoustic metamaterials; crystals acoustic ... See more keywords
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A localized meshless collocation method for bandgap calculation of anti-plane waves in 2D solid phononic crystals

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recommendations! Published in 2020 at "Engineering Analysis With Boundary Elements"

DOI: 10.1016/j.enganabound.2020.07.014

Abstract: Abstract In this paper, a localized meshless collocation method, the generalized finite difference method (GFDM), is first applied to calculate the bandgaps of anti-plane transverse elastic waves in 2D solid phononic crystals with square and… read more here.

Keywords: phononic crystals; meshless collocation; method; collocation method ... See more keywords
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Analysis of the effects of viscosity on the SH-wave band-gaps of 2D viscoelastic phononic crystals by Dirichlet-to-Neumann map method

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recommendations! Published in 2021 at "International Journal of Mechanical Sciences"

DOI: 10.1016/j.ijmecsci.2020.106225

Abstract: Abstract The effects of viscosity on the band-baps of two-dimensional (2D) viscoelastic phononic crystals are studied by the Dirichlet-to-Neumann (DtN) map method. The viscoelastic phononic crystals are composed of square or triangular lattices of elastic… read more here.

Keywords: viscosity; phononic crystals; viscoelastic phononic; map ... See more keywords
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Acoustoelastic analysis of soft viscoelastic solids with application to pre-stressed phononic crystals

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recommendations! Published in 2022 at "International Journal of Solids and Structures"

DOI: 10.1016/j.ijsolstr.2022.111529

Abstract: The effective dynamic properties of specific periodic structures involving rubber-like materials can be adjusted by pre-strain, thus facilitating the design of custom acoustic filters. While nonlinear viscoelastic behaviour is one of the main features of… read more here.

Keywords: pre; acoustoelastic analysis; soft viscoelastic; phononic crystals ... See more keywords
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Ultrawide band gap design of phononic crystals based on topological optimization

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recommendations! Published in 2019 at "Physica B: Condensed Matter"

DOI: 10.1016/j.physb.2019.07.012

Abstract: Abstract In this paper, based on the combined finite element method and bidirectional evolutionary structural optimization algorithm, we perform the topological optimization of phononic crystals to obtain ultrawide band gap between two special adjacent bands… read more here.

Keywords: optimization; ultrawide band; phononic crystals; band ... See more keywords
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Maximizing wave attenuation in viscoelastic phononic crystals by topology optimization

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recommendations! Published in 2019 at "Ultrasonics"

DOI: 10.1016/j.ultras.2018.05.005

Abstract: HighlightsA topology optimization algorithm for designing 2D viscoelastic phononic crystals is established.Stiffness of phononic crystals is also considered in optimization.Various novel topological patterns of 2D viscoelastic phononic crystals are found.The wave attenuation of the optimized… read more here.

Keywords: phononic crystals; viscoelastic phononic; topology; topology optimization ... See more keywords
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A highly attenuating and frequency tailorable annular hole phononic crystal for surface acoustic waves

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recommendations! Published in 2017 at "Nature Communications"

DOI: 10.1038/s41467-017-00278-0

Abstract: Surface acoustic wave (SAW) devices are widely used for signal processing, sensing and increasingly for lab-on-a-chip applications. Phononic crystals can control the propagation of SAW, analogous to photonic crystals, enabling components such as waveguides and… read more here.

Keywords: phononic crystal; phononic crystals; surface acoustic; highly attenuating ... See more keywords