Computational material design for acoustic cloaking

Méndez, Carlos Alberto; Podestá, J.M.; Lloberas Valls, Oriol|||0000-0001-8405-8725; Toro, Sebastian; Huespe, Alfredo Edmundo|||0000-0001-7239-9805; Oliver Olivella, Xavier|||0000-0001-8717-1483

Computational material design for acoustic cloaking

A topology optimization technique based on the topological derivative and the level set function is utilized to design/synthesize the micro-structure of a pentamode material for an acoustic cloaking device. The technique provides a micro-structure consisting of a honeycomb lattice composed of needle...

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Detalles Bibliográficos
Autores:	Méndez, Carlos Alberto, Podestá, J.M., Lloberas Valls, Oriol\|\|\|0000-0001-8405-8725, Toro, Sebastian, Huespe, Alfredo Edmundo\|\|\|0000-0001-7239-9805, Oliver Olivella, Xavier\|\|\|0000-0001-8717-1483
Tipo de recurso:	artículo
Fecha de publicación:	2017
País:	España
Institución:	Universitat Politècnica de Catalunya (UPC)
Repositorio:	UPCommons. Portal del coneixement obert de la UPC
Idioma:	inglés
OAI Identifier:	oai:upcommons.upc.edu:2117/110986
Acceso en línea:	https://hdl.handle.net/2117/110986 https://dx.doi.org/10.1002/nme.5560
Access Level:	acceso abierto
Palabra clave:	Metamaterials--Acoustic properties transformation acoustic applications acoustic cloak pentamode material topological derivative topology optimization extremal material COMP-DES-MAT Project COMPDESMAT Project Metamaterials Acústica Àrees temàtiques de la UPC::Física::Acústica Àrees temàtiques de la UPC::Matemàtiques i estadística::Topologia

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spelling	Computational material design for acoustic cloakingMéndez, Carlos AlbertoPodestá, J.M.Lloberas Valls, Oriol\|\|\|0000-0001-8405-8725Toro, SebastianHuespe, Alfredo Edmundo\|\|\|0000-0001-7239-9805Oliver Olivella, Xavier\|\|\|0000-0001-8717-1483Metamaterials--Acoustic propertiestransformation acoustic applicationsacoustic cloakpentamode materialtopological derivativetopology optimizationextremal materialCOMP-DES-MAT ProjectCOMPDESMAT ProjectMetamaterialsAcústicaÀrees temàtiques de la UPC::Física::AcústicaÀrees temàtiques de la UPC::Matemàtiques i estadística::TopologiaA topology optimization technique based on the topological derivative and the level set function is utilized to design/synthesize the micro-structure of a pentamode material for an acoustic cloaking device. The technique provides a micro-structure consisting of a honeycomb lattice composed of needle-like and joint members. The resulting metamaterial shows a highly anisotropic elastic response with effective properties displaying a ratio between bulk and shear moduli of almost 3 orders of magnitude. Furthermore, in accordance with previous works in the literature, it can be asserted that this kind of micro-structure can be realistically fabricated. The adoption of a topology optimization technique as a tool for the inverse design of metamaterials with applications to acoustic cloaking problems is one contribution of this paper. However, the most important achievement refers to the analysis and discussion revealing the key role of the external shape of the prescribed domain where the optimization problem is posed. The efficiency of the designed micro-structure is measured by comparing the scattering wave fields generated by acoustic plane waves impinging on bare and cloaked bodies.Peer ReviewedJohn Wiley & Sons20172017-12-0120172017-11-21journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/110986https://dx.doi.org/10.1002/nme.5560reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)InglésengEuropean Commission http://dx.doi.org/10.13039/100011102 Seventh Framework Programme 320815 Advanced tools for computational design of engineering materialsopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 3.0 Spainhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1109862026-05-27T15:37:01Z
dc.title.none.fl_str_mv	Computational material design for acoustic cloaking
title	Computational material design for acoustic cloaking
spellingShingle	Computational material design for acoustic cloaking Méndez, Carlos Alberto Metamaterials--Acoustic properties transformation acoustic applications acoustic cloak pentamode material topological derivative topology optimization extremal material COMP-DES-MAT Project COMPDESMAT Project Metamaterials Acústica Àrees temàtiques de la UPC::Física::Acústica Àrees temàtiques de la UPC::Matemàtiques i estadística::Topologia
title_short	Computational material design for acoustic cloaking
title_full	Computational material design for acoustic cloaking
title_fullStr	Computational material design for acoustic cloaking
title_full_unstemmed	Computational material design for acoustic cloaking
title_sort	Computational material design for acoustic cloaking
dc.creator.none.fl_str_mv	Méndez, Carlos Alberto Podestá, J.M. Lloberas Valls, Oriol\|\|\|0000-0001-8405-8725 Toro, Sebastian Huespe, Alfredo Edmundo\|\|\|0000-0001-7239-9805 Oliver Olivella, Xavier\|\|\|0000-0001-8717-1483
author	Méndez, Carlos Alberto
author_facet	Méndez, Carlos Alberto Podestá, J.M. Lloberas Valls, Oriol\|\|\|0000-0001-8405-8725 Toro, Sebastian Huespe, Alfredo Edmundo\|\|\|0000-0001-7239-9805 Oliver Olivella, Xavier\|\|\|0000-0001-8717-1483
author_role	author
author2	Podestá, J.M. Lloberas Valls, Oriol\|\|\|0000-0001-8405-8725 Toro, Sebastian Huespe, Alfredo Edmundo\|\|\|0000-0001-7239-9805 Oliver Olivella, Xavier\|\|\|0000-0001-8717-1483
author2_role	author author author author author
dc.subject.none.fl_str_mv	Metamaterials--Acoustic properties transformation acoustic applications acoustic cloak pentamode material topological derivative topology optimization extremal material COMP-DES-MAT Project COMPDESMAT Project Metamaterials Acústica Àrees temàtiques de la UPC::Física::Acústica Àrees temàtiques de la UPC::Matemàtiques i estadística::Topologia
topic	Metamaterials--Acoustic properties transformation acoustic applications acoustic cloak pentamode material topological derivative topology optimization extremal material COMP-DES-MAT Project COMPDESMAT Project Metamaterials Acústica Àrees temàtiques de la UPC::Física::Acústica Àrees temàtiques de la UPC::Matemàtiques i estadística::Topologia
description	A topology optimization technique based on the topological derivative and the level set function is utilized to design/synthesize the micro-structure of a pentamode material for an acoustic cloaking device. The technique provides a micro-structure consisting of a honeycomb lattice composed of needle-like and joint members. The resulting metamaterial shows a highly anisotropic elastic response with effective properties displaying a ratio between bulk and shear moduli of almost 3 orders of magnitude. Furthermore, in accordance with previous works in the literature, it can be asserted that this kind of micro-structure can be realistically fabricated. The adoption of a topology optimization technique as a tool for the inverse design of metamaterials with applications to acoustic cloaking problems is one contribution of this paper. However, the most important achievement refers to the analysis and discussion revealing the key role of the external shape of the prescribed domain where the optimization problem is posed. The efficiency of the designed micro-structure is measured by comparing the scattering wave fields generated by acoustic plane waves impinging on bare and cloaked bodies.
publishDate	2017
dc.date.none.fl_str_mv	2017 2017-12-01 2017 2017-11-21
dc.type.none.fl_str_mv	journal article http://purl.org/coar/resource_type/c_6501 VoR http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv	info:eu-repo/semantics/article
format	article
dc.identifier.none.fl_str_mv	https://hdl.handle.net/2117/110986 https://dx.doi.org/10.1002/nme.5560
url	https://hdl.handle.net/2117/110986 https://dx.doi.org/10.1002/nme.5560
dc.language.none.fl_str_mv	Inglés eng
language_invalid_str_mv	Inglés
language	eng
dc.relation.none.fl_str_mv	European Commission http://dx.doi.org/10.13039/100011102 Seventh Framework Programme 320815 Advanced tools for computational design of engineering materials
dc.rights.none.fl_str_mv	open access http://purl.org/coar/access_right/c_abf2 Attribution 3.0 Spain http://creativecommons.org/licenses/by/3.0/es/
dc.rights.openaire.fl_str_mv	info:eu-repo/semantics/openAccess
rights_invalid_str_mv	open access http://purl.org/coar/access_right/c_abf2 Attribution 3.0 Spain http://creativecommons.org/licenses/by/3.0/es/
eu_rights_str_mv	openAccess
dc.format.none.fl_str_mv	application/pdf
dc.publisher.none.fl_str_mv	John Wiley & Sons
publisher.none.fl_str_mv	John Wiley & Sons
dc.source.none.fl_str_mv	reponame:UPCommons. Portal del coneixement obert de la UPC instname:Universitat Politècnica de Catalunya (UPC)
instname_str	Universitat Politècnica de Catalunya (UPC)
reponame_str	UPCommons. Portal del coneixement obert de la UPC
collection	UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score	15,301603

Computational material design for acoustic cloaking

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