Effect of internal structure in the compression behavior of casted Al/LECA composite foams
Autor(a) principal: | |
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Data de Publicação: | 2018 |
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/1822/60763 |
Resumo: | In this paper, low-cost, aluminum-based composite metal foams are produced by the gravity die casting technique using lightweight expanded clay (LECA) as space holders. The influence of the voids generated by LECA particles on the syntactic composite samples density and mechanical behavior is characterized by quasi-static uniaxial compression. It is shown that smaller particles generate higher relative densities and a reduction in the value of densification strain. The use of larger particle diameter promotes an increase in yield strength and a more stable plateau region of the stress–strain curve, leading to higher values of crushing energy absorption. The influence of the internal structure on these experimental results is correlated with elasto-plastic numerical simulations, and it is suggested that a small mismatch in LECA particle diameter is advantageous for enhancing mechanical properties. |
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Effect of internal structure in the compression behavior of casted Al/LECA composite foamssyntactic foamaluminum alloylightweight expanded clay (LECA) particlescastingScience & TechnologyIn this paper, low-cost, aluminum-based composite metal foams are produced by the gravity die casting technique using lightweight expanded clay (LECA) as space holders. The influence of the voids generated by LECA particles on the syntactic composite samples density and mechanical behavior is characterized by quasi-static uniaxial compression. It is shown that smaller particles generate higher relative densities and a reduction in the value of densification strain. The use of larger particle diameter promotes an increase in yield strength and a more stable plateau region of the stress–strain curve, leading to higher values of crushing energy absorption. The influence of the internal structure on these experimental results is correlated with elasto-plastic numerical simulations, and it is suggested that a small mismatch in LECA particle diameter is advantageous for enhancing mechanical properties.This work is supported by the research doctoral grant PD/BD/114096/2015 and postdoctoral grant SFRH/BPD/76680/2011 through Portuguese National Funding Agency for Science (FCT). In addition, this work is supported by FCT with the reference project UID/EEA/04436/2013 and by FEDER funds through the COMPETE 2020 with the reference project POCI-01-0145-FEDER-006941.info:eu-repo/semantics/publishedVersionMultidisciplinary Digital Publishing Institute (MDPI)Universidade do MinhoPuga, HélderCarneiro, Vitor H.Barbosa, J.2018-11-012018-11-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/60763eng2504-477X10.3390/jcs2040064info: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:RCAAP2023-07-21T12:31:27Zoai:repositorium.sdum.uminho.pt:1822/60763Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:26:41.594307Repositório 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 |
Effect of internal structure in the compression behavior of casted Al/LECA composite foams |
title |
Effect of internal structure in the compression behavior of casted Al/LECA composite foams |
spellingShingle |
Effect of internal structure in the compression behavior of casted Al/LECA composite foams Puga, Hélder syntactic foam aluminum alloy lightweight expanded clay (LECA) particles casting Science & Technology |
title_short |
Effect of internal structure in the compression behavior of casted Al/LECA composite foams |
title_full |
Effect of internal structure in the compression behavior of casted Al/LECA composite foams |
title_fullStr |
Effect of internal structure in the compression behavior of casted Al/LECA composite foams |
title_full_unstemmed |
Effect of internal structure in the compression behavior of casted Al/LECA composite foams |
title_sort |
Effect of internal structure in the compression behavior of casted Al/LECA composite foams |
author |
Puga, Hélder |
author_facet |
Puga, Hélder Carneiro, Vitor H. Barbosa, J. |
author_role |
author |
author2 |
Carneiro, Vitor H. Barbosa, J. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Puga, Hélder Carneiro, Vitor H. Barbosa, J. |
dc.subject.por.fl_str_mv |
syntactic foam aluminum alloy lightweight expanded clay (LECA) particles casting Science & Technology |
topic |
syntactic foam aluminum alloy lightweight expanded clay (LECA) particles casting Science & Technology |
description |
In this paper, low-cost, aluminum-based composite metal foams are produced by the gravity die casting technique using lightweight expanded clay (LECA) as space holders. The influence of the voids generated by LECA particles on the syntactic composite samples density and mechanical behavior is characterized by quasi-static uniaxial compression. It is shown that smaller particles generate higher relative densities and a reduction in the value of densification strain. The use of larger particle diameter promotes an increase in yield strength and a more stable plateau region of the stress–strain curve, leading to higher values of crushing energy absorption. The influence of the internal structure on these experimental results is correlated with elasto-plastic numerical simulations, and it is suggested that a small mismatch in LECA particle diameter is advantageous for enhancing mechanical properties. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-01 2018-11-01T00:00:00Z |
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/1822/60763 |
url |
http://hdl.handle.net/1822/60763 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2504-477X 10.3390/jcs2040064 |
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 |
Multidisciplinary Digital Publishing Institute (MDPI) |
publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute (MDPI) |
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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1799132755498369024 |