Impact strength of composites with nano-enhanced resin after fire exposure
Autor(a) principal: | |
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Data de Publicação: | 2014 |
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/10316/27170 https://doi.org/10.1016/j.compositesb.2013.08.048 |
Resumo: | Composite materials have been widely used in several engineering applications. However, there are very few studies about the effects of nanoclays on the impact strength of laminates after exposure to the fire. Therefore, this paper intends to study this subject and the impact performance was analysed by low velocity impact tests carried out at different incident impact energy levels. For better dispersion and interface adhesion matrix/clay, nanoclays were previously subjected to a silane treatment appropriate to the epoxy resin. The exposure to the fire decreases the maximum load and increases the displacement in comparison with the respective values obtained at room temperature. Mathematical relationships are proposed to estimate the maximum impact force and displacement, based on the total impact energy and flexural stiffness. Finally, a decrease of the elastic recuperation can be found, independently of the benefits introduced by the nanoclays. |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Impact strength of composites with nano-enhanced resin after fire exposureA. Polymer–matrix composites (PMCs)A. Nano-structuresB. Impact behaviourComposite materials have been widely used in several engineering applications. However, there are very few studies about the effects of nanoclays on the impact strength of laminates after exposure to the fire. Therefore, this paper intends to study this subject and the impact performance was analysed by low velocity impact tests carried out at different incident impact energy levels. For better dispersion and interface adhesion matrix/clay, nanoclays were previously subjected to a silane treatment appropriate to the epoxy resin. The exposure to the fire decreases the maximum load and increases the displacement in comparison with the respective values obtained at room temperature. Mathematical relationships are proposed to estimate the maximum impact force and displacement, based on the total impact energy and flexural stiffness. Finally, a decrease of the elastic recuperation can be found, independently of the benefits introduced by the nanoclays.Elsevier2014-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/27170http://hdl.handle.net/10316/27170https://doi.org/10.1016/j.compositesb.2013.08.048engREIS, P. N. B. [et al.] -Impact strength of composites with nano-enhanced resin after fire exposure. "Composites Part B: Engineering". ISSN 1359-8368. Vol. 56 (2014) p. 290-2951359-8368http://www.sciencedirect.com/science/article/pii/S1359836813004563Reis, P. N. B.Ferreira, J. A. M.Zhang, Z. Y.Benameur, T.Richardson, M. O. W.info: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:RCAAP2020-05-29T10:05:29ZPortal AgregadorONG |
dc.title.none.fl_str_mv |
Impact strength of composites with nano-enhanced resin after fire exposure |
title |
Impact strength of composites with nano-enhanced resin after fire exposure |
spellingShingle |
Impact strength of composites with nano-enhanced resin after fire exposure Reis, P. N. B. A. Polymer–matrix composites (PMCs) A. Nano-structures B. Impact behaviour |
title_short |
Impact strength of composites with nano-enhanced resin after fire exposure |
title_full |
Impact strength of composites with nano-enhanced resin after fire exposure |
title_fullStr |
Impact strength of composites with nano-enhanced resin after fire exposure |
title_full_unstemmed |
Impact strength of composites with nano-enhanced resin after fire exposure |
title_sort |
Impact strength of composites with nano-enhanced resin after fire exposure |
author |
Reis, P. N. B. |
author_facet |
Reis, P. N. B. Ferreira, J. A. M. Zhang, Z. Y. Benameur, T. Richardson, M. O. W. |
author_role |
author |
author2 |
Ferreira, J. A. M. Zhang, Z. Y. Benameur, T. Richardson, M. O. W. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Reis, P. N. B. Ferreira, J. A. M. Zhang, Z. Y. Benameur, T. Richardson, M. O. W. |
dc.subject.por.fl_str_mv |
A. Polymer–matrix composites (PMCs) A. Nano-structures B. Impact behaviour |
topic |
A. Polymer–matrix composites (PMCs) A. Nano-structures B. Impact behaviour |
description |
Composite materials have been widely used in several engineering applications. However, there are very few studies about the effects of nanoclays on the impact strength of laminates after exposure to the fire. Therefore, this paper intends to study this subject and the impact performance was analysed by low velocity impact tests carried out at different incident impact energy levels. For better dispersion and interface adhesion matrix/clay, nanoclays were previously subjected to a silane treatment appropriate to the epoxy resin. The exposure to the fire decreases the maximum load and increases the displacement in comparison with the respective values obtained at room temperature. Mathematical relationships are proposed to estimate the maximum impact force and displacement, based on the total impact energy and flexural stiffness. Finally, a decrease of the elastic recuperation can be found, independently of the benefits introduced by the nanoclays. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01 |
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/10316/27170 http://hdl.handle.net/10316/27170 https://doi.org/10.1016/j.compositesb.2013.08.048 |
url |
http://hdl.handle.net/10316/27170 https://doi.org/10.1016/j.compositesb.2013.08.048 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
REIS, P. N. B. [et al.] -Impact strength of composites with nano-enhanced resin after fire exposure. "Composites Part B: Engineering". ISSN 1359-8368. Vol. 56 (2014) p. 290-295 1359-8368 http://www.sciencedirect.com/science/article/pii/S1359836813004563 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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 |
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_version_ |
1777302672537288704 |