Single-phase elastic metamaterials for wave filtering

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

This paper discusses an elastic metamaterial for filtering energy from certain frequencies of an incoming wave. The unit cell, which is composed by a single material, is built to obtain a local resonance band gap. Since Bloch-Floquet's periodic condition is enforced to the unit cell, the dynamic characteristics of the metamaterial is obtained by only evaluating such structure. The attenuation mechanism is guaranteed by visualizing bandwidths in which the wave propagation is prohibited. Such bandwidths, denoted as band gaps, are observed in the band structure diagram of the unit cell and in the transmissibility loss over the metamaterial. The assemble of unit cells with different internal geometries results in a filtering mechanism. The proposed single-phase metamaterial could be applied in structures requiring vibration control for selective frequencies.

Original languageEnglish
Title of host publicationProceedings of ASME 2021 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2021
PublisherASME
Number of pages6
ISBN (Electronic)978-0-7918-8549-9
DOIs
Publication statusPublished - 2021
EventASME 2021 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2021 - Virtual, Online
Duration: 14 Sep 202115 Sep 2021

Conference

ConferenceASME 2021 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2021
CityVirtual, Online
Period14/09/2115/09/21

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

  • Elastic wave attenuation
  • Single-phase elastic metamaterials
  • Wave filtering

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