Development and characterization of novel auxetic structures based on re-entrant hexagon design produced from braided composites
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/44167 |
Resumo: | This paper reports the first attempt of developing macro-scale auxetic structures based on re-entrant hexagon design from braided composite materials for civil engineering applications. Braided composite rods (BCRs) were produced and arranged as longitudinal and horizontal elements to produce three types of auxetic structures: (1) basic re-entrant hexagon structure, (2) basic structure modified by adding straight longitudinal elements and (3): structure-2 modified by changing structural angle. The influence of various material and structural parameters as well as structure type on Poisson's ratio and tensile properties was thoroughly investigated. The auxetic behaviour was found to strongly depend on the structural angle and straight elements, resulting in lower auxeticity with lower angles and in presence of straight elements. Material parameters influenced the auxetic behaviour to a lesser extent and a decrease in auxetic behaviour was noticed with increase in core fibre linear density and using stiffer fibres such as carbon. The reverse effect was observed in case of tensile strength and work of rupture. Among these structures, structure-3 exhibited good auxetic behaviour, balanced tensile properties, and high energy absorption capacity and their auxetic behaviour could be well predicted with the developed analytical model. Therefore, these novel structures present good potential for strengthening of civil structures. |
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Development and characterization of novel auxetic structures based on re-entrant hexagon design produced from braided compositesSmart materialsMechanical propertiesAnalytical modelling;Mechanical testingBraidingA. Smart materialsB. Mechanical propertiesC. Analytical modellingD. Mechanical testingE. BraidingEngenharia e Tecnologia::Engenharia dos MateriaisScience & TechnologyThis paper reports the first attempt of developing macro-scale auxetic structures based on re-entrant hexagon design from braided composite materials for civil engineering applications. Braided composite rods (BCRs) were produced and arranged as longitudinal and horizontal elements to produce three types of auxetic structures: (1) basic re-entrant hexagon structure, (2) basic structure modified by adding straight longitudinal elements and (3): structure-2 modified by changing structural angle. The influence of various material and structural parameters as well as structure type on Poisson's ratio and tensile properties was thoroughly investigated. The auxetic behaviour was found to strongly depend on the structural angle and straight elements, resulting in lower auxeticity with lower angles and in presence of straight elements. Material parameters influenced the auxetic behaviour to a lesser extent and a decrease in auxetic behaviour was noticed with increase in core fibre linear density and using stiffer fibres such as carbon. The reverse effect was observed in case of tensile strength and work of rupture. Among these structures, structure-3 exhibited good auxetic behaviour, balanced tensile properties, and high energy absorption capacity and their auxetic behaviour could be well predicted with the developed analytical model. Therefore, these novel structures present good potential for strengthening of civil structures.The authors gratefully acknowledge the financial support for carrying out this research work from University of Minho, under the scheme of "Strategic plan of school of engineering - Agenda 2020: Multidisciplinary projects."ElsevierUniversidade do MinhoSubramani, PRana, S.Ghiassi, BahmanFangueiro, RaúlOliveira, Daniel V.Lourenço, Paulo B.Xavier, José2016-05-152016-05-15T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/44167eng1359-836810.1016/j.compositesb.2016.02.058info: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:RCAAP2023-07-21T12:49:00Zoai:repositorium.sdum.uminho.pt:1822/44167Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:47:23.418637Repositório 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 |
Development and characterization of novel auxetic structures based on re-entrant hexagon design produced from braided composites |
title |
Development and characterization of novel auxetic structures based on re-entrant hexagon design produced from braided composites |
spellingShingle |
Development and characterization of novel auxetic structures based on re-entrant hexagon design produced from braided composites Subramani, P Smart materials Mechanical properties Analytical modelling; Mechanical testing Braiding A. Smart materials B. Mechanical properties C. Analytical modelling D. Mechanical testing E. Braiding Engenharia e Tecnologia::Engenharia dos Materiais Science & Technology |
title_short |
Development and characterization of novel auxetic structures based on re-entrant hexagon design produced from braided composites |
title_full |
Development and characterization of novel auxetic structures based on re-entrant hexagon design produced from braided composites |
title_fullStr |
Development and characterization of novel auxetic structures based on re-entrant hexagon design produced from braided composites |
title_full_unstemmed |
Development and characterization of novel auxetic structures based on re-entrant hexagon design produced from braided composites |
title_sort |
Development and characterization of novel auxetic structures based on re-entrant hexagon design produced from braided composites |
author |
Subramani, P |
author_facet |
Subramani, P Rana, S. Ghiassi, Bahman Fangueiro, Raúl Oliveira, Daniel V. Lourenço, Paulo B. Xavier, José |
author_role |
author |
author2 |
Rana, S. Ghiassi, Bahman Fangueiro, Raúl Oliveira, Daniel V. Lourenço, Paulo B. Xavier, José |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Subramani, P Rana, S. Ghiassi, Bahman Fangueiro, Raúl Oliveira, Daniel V. Lourenço, Paulo B. Xavier, José |
dc.subject.por.fl_str_mv |
Smart materials Mechanical properties Analytical modelling; Mechanical testing Braiding A. Smart materials B. Mechanical properties C. Analytical modelling D. Mechanical testing E. Braiding Engenharia e Tecnologia::Engenharia dos Materiais Science & Technology |
topic |
Smart materials Mechanical properties Analytical modelling; Mechanical testing Braiding A. Smart materials B. Mechanical properties C. Analytical modelling D. Mechanical testing E. Braiding Engenharia e Tecnologia::Engenharia dos Materiais Science & Technology |
description |
This paper reports the first attempt of developing macro-scale auxetic structures based on re-entrant hexagon design from braided composite materials for civil engineering applications. Braided composite rods (BCRs) were produced and arranged as longitudinal and horizontal elements to produce three types of auxetic structures: (1) basic re-entrant hexagon structure, (2) basic structure modified by adding straight longitudinal elements and (3): structure-2 modified by changing structural angle. The influence of various material and structural parameters as well as structure type on Poisson's ratio and tensile properties was thoroughly investigated. The auxetic behaviour was found to strongly depend on the structural angle and straight elements, resulting in lower auxeticity with lower angles and in presence of straight elements. Material parameters influenced the auxetic behaviour to a lesser extent and a decrease in auxetic behaviour was noticed with increase in core fibre linear density and using stiffer fibres such as carbon. The reverse effect was observed in case of tensile strength and work of rupture. Among these structures, structure-3 exhibited good auxetic behaviour, balanced tensile properties, and high energy absorption capacity and their auxetic behaviour could be well predicted with the developed analytical model. Therefore, these novel structures present good potential for strengthening of civil structures. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-05-15 2016-05-15T00:00:00Z |
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/1822/44167 |
url |
http://hdl.handle.net/1822/44167 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1359-8368 10.1016/j.compositesb.2016.02.058 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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 |
repository.mail.fl_str_mv |
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1799133046976282624 |