Effect of hybrid fiber reinforcement on the cracking process in fiber reinforced cementitious composites
Autor(a) principal: | |
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Data de Publicação: | 2012 |
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/1822/21523 |
Resumo: | The simultaneous use of different types of fibers as reinforcement in cementitious matrix composites is typically motivated by the underlying principle of a multi-scale nature of the cracking processes in fiber reinforced cementitious composites. It has been hypothesized that while undergoing tensile deformations in the composite, the fibers with different geometrical and mechanical properties restrain the propagation and further development of cracking at different scales from the micro- to the macro- scale. The optimized design of the fiber reinforcing systems requires the objective assessment of the contribution of each type of fiber to the overall tensile response. Possible synergistic effects resulting from particular combinations of fibers need to be clearly identified. In the present study, the evaluation of the response of different fiber reinforced cementitious composite materials is carried out by assessing directly their tensile stress-crack opening behavior. The effi- ciency of hybrid fiber reinforcements and the multi-scale nature of cracking processes are discussed based on the experimental results obtained, as well as the micro-mechanisms underlying the contribution of different fibers to bridge cracks resulting from tensile loading. |
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Effect of hybrid fiber reinforcement on the cracking process in fiber reinforced cementitious compositesHybridFiber reinforcementTensile propertiesCementitious compositeMaterial designCracking processScience & TechnologyThe simultaneous use of different types of fibers as reinforcement in cementitious matrix composites is typically motivated by the underlying principle of a multi-scale nature of the cracking processes in fiber reinforced cementitious composites. It has been hypothesized that while undergoing tensile deformations in the composite, the fibers with different geometrical and mechanical properties restrain the propagation and further development of cracking at different scales from the micro- to the macro- scale. The optimized design of the fiber reinforcing systems requires the objective assessment of the contribution of each type of fiber to the overall tensile response. Possible synergistic effects resulting from particular combinations of fibers need to be clearly identified. In the present study, the evaluation of the response of different fiber reinforced cementitious composite materials is carried out by assessing directly their tensile stress-crack opening behavior. The effi- ciency of hybrid fiber reinforcements and the multi-scale nature of cracking processes are discussed based on the experimental results obtained, as well as the micro-mechanisms underlying the contribution of different fibers to bridge cracks resulting from tensile loading.The authors thank the Portuguese National Science Foundation for the financial support, through Grant SFRH/BD/36515/2007, funded by POPH-QREN, the Social European Fund and the MCTES, and DTU-Byg for their support of the work as part of this project.ElsevierUniversidade do MinhoPereira, E. N. B.Fischer, G.Barros, Joaquim A. O.20122012-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/21523eng0958-946510.1016/j.cemconcomp.2012.08.004http://www.sciencedirect.com/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:RCAAP2023-07-21T11:57:27Zoai:repositorium.sdum.uminho.pt:1822/21523Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:47:06.932195Repositório 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 hybrid fiber reinforcement on the cracking process in fiber reinforced cementitious composites |
title |
Effect of hybrid fiber reinforcement on the cracking process in fiber reinforced cementitious composites |
spellingShingle |
Effect of hybrid fiber reinforcement on the cracking process in fiber reinforced cementitious composites Pereira, E. N. B. Hybrid Fiber reinforcement Tensile properties Cementitious composite Material design Cracking process Science & Technology |
title_short |
Effect of hybrid fiber reinforcement on the cracking process in fiber reinforced cementitious composites |
title_full |
Effect of hybrid fiber reinforcement on the cracking process in fiber reinforced cementitious composites |
title_fullStr |
Effect of hybrid fiber reinforcement on the cracking process in fiber reinforced cementitious composites |
title_full_unstemmed |
Effect of hybrid fiber reinforcement on the cracking process in fiber reinforced cementitious composites |
title_sort |
Effect of hybrid fiber reinforcement on the cracking process in fiber reinforced cementitious composites |
author |
Pereira, E. N. B. |
author_facet |
Pereira, E. N. B. Fischer, G. Barros, Joaquim A. O. |
author_role |
author |
author2 |
Fischer, G. Barros, Joaquim A. O. |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Pereira, E. N. B. Fischer, G. Barros, Joaquim A. O. |
dc.subject.por.fl_str_mv |
Hybrid Fiber reinforcement Tensile properties Cementitious composite Material design Cracking process Science & Technology |
topic |
Hybrid Fiber reinforcement Tensile properties Cementitious composite Material design Cracking process Science & Technology |
description |
The simultaneous use of different types of fibers as reinforcement in cementitious matrix composites is typically motivated by the underlying principle of a multi-scale nature of the cracking processes in fiber reinforced cementitious composites. It has been hypothesized that while undergoing tensile deformations in the composite, the fibers with different geometrical and mechanical properties restrain the propagation and further development of cracking at different scales from the micro- to the macro- scale. The optimized design of the fiber reinforcing systems requires the objective assessment of the contribution of each type of fiber to the overall tensile response. Possible synergistic effects resulting from particular combinations of fibers need to be clearly identified. In the present study, the evaluation of the response of different fiber reinforced cementitious composite materials is carried out by assessing directly their tensile stress-crack opening behavior. The effi- ciency of hybrid fiber reinforcements and the multi-scale nature of cracking processes are discussed based on the experimental results obtained, as well as the micro-mechanisms underlying the contribution of different fibers to bridge cracks resulting from tensile loading. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012 2012-01-01T00:00:00Z |
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/1822/21523 |
url |
http://hdl.handle.net/1822/21523 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0958-9465 10.1016/j.cemconcomp.2012.08.004 http://www.sciencedirect.com/ |
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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1799132228901404672 |