Fracture behavior of polymeric fiber reinforced lightweight structural concrete

Detalhes bibliográficos
Autor(a) principal: Freitas,Itamar de
Data de Publicação: 2014
Outros Autores: Darwish,Fathi, Pereira,Marcos Venicius, Allende,Katia
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000600029
Resumo: A study has been made of the effect of short randomly dispersed polypropylene fibers on the fracture behavior of lightweight structural concrete. Using unnotched and precracked beams subjected to bend loading, it was possible to determine the toughness factor TF and to estimate specific J integral parameters, namely J IC and J MAX corresponding to the onset of fracture initiation and to the attainment of ultimate load, respectively. The results have indicated a considerable improvement in the fracture behavior associated with the presence of fibers. More specifically this improvement was manifested by a 400% increase in both TF and J IC.
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spelling Fracture behavior of polymeric fiber reinforced lightweight structural concretelightweight concretefracture initiationJ integraltoughness factorcompressive strengthA study has been made of the effect of short randomly dispersed polypropylene fibers on the fracture behavior of lightweight structural concrete. Using unnotched and precracked beams subjected to bend loading, it was possible to determine the toughness factor TF and to estimate specific J integral parameters, namely J IC and J MAX corresponding to the onset of fracture initiation and to the attainment of ultimate load, respectively. The results have indicated a considerable improvement in the fracture behavior associated with the presence of fibers. More specifically this improvement was manifested by a 400% increase in both TF and J IC.ABM, ABC, ABPol2014-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000600029Materials Research v.17 n.6 2014reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1516-1439.287314info:eu-repo/semantics/openAccessFreitas,Itamar deDarwish,FathiPereira,Marcos VeniciusAllende,Katiaeng2015-02-10T00:00:00Zoai:scielo:S1516-14392014000600029Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2015-02-10T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Fracture behavior of polymeric fiber reinforced lightweight structural concrete
title Fracture behavior of polymeric fiber reinforced lightweight structural concrete
spellingShingle Fracture behavior of polymeric fiber reinforced lightweight structural concrete
Freitas,Itamar de
lightweight concrete
fracture initiation
J integral
toughness factor
compressive strength
title_short Fracture behavior of polymeric fiber reinforced lightweight structural concrete
title_full Fracture behavior of polymeric fiber reinforced lightweight structural concrete
title_fullStr Fracture behavior of polymeric fiber reinforced lightweight structural concrete
title_full_unstemmed Fracture behavior of polymeric fiber reinforced lightweight structural concrete
title_sort Fracture behavior of polymeric fiber reinforced lightweight structural concrete
author Freitas,Itamar de
author_facet Freitas,Itamar de
Darwish,Fathi
Pereira,Marcos Venicius
Allende,Katia
author_role author
author2 Darwish,Fathi
Pereira,Marcos Venicius
Allende,Katia
author2_role author
author
author
dc.contributor.author.fl_str_mv Freitas,Itamar de
Darwish,Fathi
Pereira,Marcos Venicius
Allende,Katia
dc.subject.por.fl_str_mv lightweight concrete
fracture initiation
J integral
toughness factor
compressive strength
topic lightweight concrete
fracture initiation
J integral
toughness factor
compressive strength
description A study has been made of the effect of short randomly dispersed polypropylene fibers on the fracture behavior of lightweight structural concrete. Using unnotched and precracked beams subjected to bend loading, it was possible to determine the toughness factor TF and to estimate specific J integral parameters, namely J IC and J MAX corresponding to the onset of fracture initiation and to the attainment of ultimate load, respectively. The results have indicated a considerable improvement in the fracture behavior associated with the presence of fibers. More specifically this improvement was manifested by a 400% increase in both TF and J IC.
publishDate 2014
dc.date.none.fl_str_mv 2014-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000600029
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392014000600029
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1516-1439.287314
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.17 n.6 2014
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212664499765248

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