Experimental Validation and Numerical Analysis of a High-Performance Blast Energy-Absorbing System for Building Structures

Detalhes bibliográficos
Autor(a) principal: Gomes, Gabriel de Jesus
Data de Publicação: 2023
Outros Autores: Lúcio, Valter José da Guia, Cismaşiu, Corneliu, Mingote, José Luis
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/153089
Resumo: Publisher Copyright: © 2023 by the authors.
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spelling Experimental Validation and Numerical Analysis of a High-Performance Blast Energy-Absorbing System for Building Structuresblast mitigationblast protectionblast testingenergy-absorbing connectorsfaçade protective claddingfree external inversioninverted tubesArchitectureCivil and Structural EngineeringBuilding and ConstructionPublisher Copyright: © 2023 by the authors.The paper presents a full-scale blast testing experimental campaign conducted on an energyabsorbing connector comprising thin-walled inversion tubes as kernel elements mounted in a façade protective panel. LS-DYNA finite element predictions of the global and local deformation/inversion of the panel/connectors compared reasonably well with the experimental observations. After validation, the numerical model was used to analyze the response of a simple idealized reinforced concrete structure under three blast-loading scenarios: the first two scenarios produce, approximately, the same impulse but are significantly different in terms of load duration and overpressures, and represent a far-field and a near-field scenario (1600 kg TNT at 20 m (i) and 150 kg TNT at 5 m (ii), respectively); the third scenario is more demanding, and consists in a half standoff distance of the second (150 kg TNT at 2.5 m (iii)). These numerical simulations allow to assess the effect of standoff distance and blast loading on the effectiveness of the protective system. One may conclude that the introduction of EACs strongly limits the forces imparted to the protected structure, reducing significantly the corresponding energy absorption demand. Comparing the energy absorbed by the structure in different scenarios, with and without the protective system (8 × ϕ64 × 2 mm), one can see that these reductions can reach, respectively 67%, 72% and 68% in the far-field, near-field and very near-field explosions.CERIS - Polo NOVADEC - Departamento de Engenharia CivilRUNGomes, Gabriel de JesusLúcio, Valter José da GuiaCismaşiu, CorneliuMingote, José Luis2023-05-23T22:18:51Z2023-02-242023-02-24T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article20application/pdfhttp://hdl.handle.net/10362/153089eng2075-5309PURE: 61245506https://doi.org/10.3390/buildings13030601info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T05:35:39Zoai:run.unl.pt:10362/153089Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:55:10.163783Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Experimental Validation and Numerical Analysis of a High-Performance Blast Energy-Absorbing System for Building Structures
title Experimental Validation and Numerical Analysis of a High-Performance Blast Energy-Absorbing System for Building Structures
spellingShingle Experimental Validation and Numerical Analysis of a High-Performance Blast Energy-Absorbing System for Building Structures
Gomes, Gabriel de Jesus
blast mitigation
blast protection
blast testing
energy-absorbing connectors
façade protective cladding
free external inversion
inverted tubes
Architecture
Civil and Structural Engineering
Building and Construction
title_short Experimental Validation and Numerical Analysis of a High-Performance Blast Energy-Absorbing System for Building Structures
title_full Experimental Validation and Numerical Analysis of a High-Performance Blast Energy-Absorbing System for Building Structures
title_fullStr Experimental Validation and Numerical Analysis of a High-Performance Blast Energy-Absorbing System for Building Structures
title_full_unstemmed Experimental Validation and Numerical Analysis of a High-Performance Blast Energy-Absorbing System for Building Structures
title_sort Experimental Validation and Numerical Analysis of a High-Performance Blast Energy-Absorbing System for Building Structures
author Gomes, Gabriel de Jesus
author_facet Gomes, Gabriel de Jesus
Lúcio, Valter José da Guia
Cismaşiu, Corneliu
Mingote, José Luis
author_role author
author2 Lúcio, Valter José da Guia
Cismaşiu, Corneliu
Mingote, José Luis
author2_role author
author
author
dc.contributor.none.fl_str_mv CERIS - Polo NOVA
DEC - Departamento de Engenharia Civil
RUN
dc.contributor.author.fl_str_mv Gomes, Gabriel de Jesus
Lúcio, Valter José da Guia
Cismaşiu, Corneliu
Mingote, José Luis
dc.subject.por.fl_str_mv blast mitigation
blast protection
blast testing
energy-absorbing connectors
façade protective cladding
free external inversion
inverted tubes
Architecture
Civil and Structural Engineering
Building and Construction
topic blast mitigation
blast protection
blast testing
energy-absorbing connectors
façade protective cladding
free external inversion
inverted tubes
Architecture
Civil and Structural Engineering
Building and Construction
description Publisher Copyright: © 2023 by the authors.
publishDate 2023
dc.date.none.fl_str_mv 2023-05-23T22:18:51Z
2023-02-24
2023-02-24T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10362/153089
url http://hdl.handle.net/10362/153089
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2075-5309
PURE: 61245506
https://doi.org/10.3390/buildings13030601
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 20
application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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