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Topological interface states in acoustic metamaterials

Milan Cajic, Sondipon Adhikari

Proceedings, 8th International Congress of the Serbian Society of Mechanics, Kragujevac, Serbia, June 28-30, 2021, Pages: 1 - 2

Swansea University Authors: Milan Cajic, Sondipon Adhikari

Abstract

This paper studies the topological interface modes at the interface of one-dimensional acoustic metamaterial chain in different unit cell configurations. The chain is composed of two sublattices that are inverted copies of each other and connected at the interface. The corresponding governing equati...

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Published in: Proceedings, 8th International Congress of the Serbian Society of Mechanics, Kragujevac, Serbia, June 28-30, 2021
ISBN: 978-86-909973-8-1
Published: Kragujevac, Serbia Serbian Society of Mechanics
URI: https://cronfa.swan.ac.uk/Record/cronfa61912
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first_indexed 2022-11-14T18:44:43Z
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spelling 2022-11-30T13:42:52.1598147 v2 61912 2022-11-14 Topological interface states in acoustic metamaterials 08b3d2d27daffae99331d905f63a6697 Milan Cajic Milan Cajic true false 4ea84d67c4e414f5ccbd7593a40f04d3 Sondipon Adhikari Sondipon Adhikari true false 2022-11-14 AERO This paper studies the topological interface modes at the interface of one-dimensional acoustic metamaterial chain in different unit cell configurations. The chain is composed of two sublattices that are inverted copies of each other and connected at the interface. The corresponding governing equations for the bulk band and frequency response function and eigenvalues of the finite chain are given and solved. The obtained results reveal the existence of interface modes within the bandgaps, showing the potential of the presented system to create sub-wavelength interface modes. The effect of stronger stiffness at the interface will be presented to show its influence on interface modes. Conference Paper/Proceeding/Abstract Proceedings, 8th International Congress of the Serbian Society of Mechanics, Kragujevac, Serbia, June 28-30, 2021 1 2 Serbian Society of Mechanics Kragujevac, Serbia 978-86-909973-8-1 0 0 0 0001-01-01 COLLEGE NANME Aerospace Engineering COLLEGE CODE AERO Swansea University European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant 896942 2022-11-30T13:42:52.1598147 2022-11-14T18:37:12.4104340 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Milan Cajic 1 Sondipon Adhikari 2 61912__25778__bc872a16fc164cec99998418bbd0c87f.pdf Abs_Milan_Cajic_EXT_Topological.pdf 2022-11-14T18:43:43.1313647 Output 221002 application/pdf Author's Original true false eng
title Topological interface states in acoustic metamaterials
spellingShingle Topological interface states in acoustic metamaterials
Milan Cajic
Sondipon Adhikari
title_short Topological interface states in acoustic metamaterials
title_full Topological interface states in acoustic metamaterials
title_fullStr Topological interface states in acoustic metamaterials
title_full_unstemmed Topological interface states in acoustic metamaterials
title_sort Topological interface states in acoustic metamaterials
author_id_str_mv 08b3d2d27daffae99331d905f63a6697
4ea84d67c4e414f5ccbd7593a40f04d3
author_id_fullname_str_mv 08b3d2d27daffae99331d905f63a6697_***_Milan Cajic
4ea84d67c4e414f5ccbd7593a40f04d3_***_Sondipon Adhikari
author Milan Cajic
Sondipon Adhikari
author2 Milan Cajic
Sondipon Adhikari
format Conference Paper/Proceeding/Abstract
container_title Proceedings, 8th International Congress of the Serbian Society of Mechanics, Kragujevac, Serbia, June 28-30, 2021
container_start_page 1
institution Swansea University
isbn 978-86-909973-8-1
publisher Serbian Society of Mechanics
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str 1
active_str 0
description This paper studies the topological interface modes at the interface of one-dimensional acoustic metamaterial chain in different unit cell configurations. The chain is composed of two sublattices that are inverted copies of each other and connected at the interface. The corresponding governing equations for the bulk band and frequency response function and eigenvalues of the finite chain are given and solved. The obtained results reveal the existence of interface modes within the bandgaps, showing the potential of the presented system to create sub-wavelength interface modes. The effect of stronger stiffness at the interface will be presented to show its influence on interface modes.
published_date 0001-01-01T04:21:07Z
_version_ 1763754395235778560
score 11.037603

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