Modelling of fracture problems in quasi-brittle materials by the E-FEM

Detalhes bibliográficos
Autor(a) principal: MARASCA,C. Z. S.
Data de Publicação: 2018
Outros Autores: BITTENCOURT,E., BESSA,V. M. R. D.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista IBRACON de Estruturas e Materiais
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952018000200244
Resumo: Abstract In this paper a numerical model with strong discontinuities is presented to address fracture problems in quasi-brittle materials. A non-symmetrical statically and kinematically consistent formulation is implemented. The strong discontinuity in the displacement field is represented using the elemental enrichment finite element method (E-FEM). In other words, the strong discontinuity is introduced into the finite element and the additional degrees of freedom are condensed at the element level, allowing the implementation into existing computational codes. Two constitutive models are used to analyze the behavior of the cracked zone, linear and exponential. The exponential model results are closer to those obtained in experimental data and representative numerical simulations than the linear model.
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spelling Modelling of fracture problems in quasi-brittle materials by the E-FEMfracturequasi-brittle materialelemental enrichment finite element method (E-FEM)Abstract In this paper a numerical model with strong discontinuities is presented to address fracture problems in quasi-brittle materials. A non-symmetrical statically and kinematically consistent formulation is implemented. The strong discontinuity in the displacement field is represented using the elemental enrichment finite element method (E-FEM). In other words, the strong discontinuity is introduced into the finite element and the additional degrees of freedom are condensed at the element level, allowing the implementation into existing computational codes. Two constitutive models are used to analyze the behavior of the cracked zone, linear and exponential. The exponential model results are closer to those obtained in experimental data and representative numerical simulations than the linear model.IBRACON - Instituto Brasileiro do Concreto2018-04-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952018000200244Revista IBRACON de Estruturas e Materiais v.11 n.2 2018reponame:Revista IBRACON de Estruturas e Materiaisinstname:Instituto Brasileiro do Concreto (IBRACON)instacron:IBRACON10.1590/s1983-41952018000200002info:eu-repo/semantics/openAccessMARASCA,C. Z. S.BITTENCOURT,E.BESSA,V. M. R. D.eng2018-05-24T00:00:00Zoai:scielo:S1983-41952018000200244Revistahttp://www.revistas.ibracon.org.br/index.php/riemhttps://old.scielo.br/oai/scielo-oai.phpeditores.riem@gmail.com||arlene@ibracon.org.br1983-41951983-4195opendoar:2018-05-24T00:00Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)false
dc.title.none.fl_str_mv Modelling of fracture problems in quasi-brittle materials by the E-FEM
title Modelling of fracture problems in quasi-brittle materials by the E-FEM
spellingShingle Modelling of fracture problems in quasi-brittle materials by the E-FEM
MARASCA,C. Z. S.
fracture
quasi-brittle material
elemental enrichment finite element method (E-FEM)
title_short Modelling of fracture problems in quasi-brittle materials by the E-FEM
title_full Modelling of fracture problems in quasi-brittle materials by the E-FEM
title_fullStr Modelling of fracture problems in quasi-brittle materials by the E-FEM
title_full_unstemmed Modelling of fracture problems in quasi-brittle materials by the E-FEM
title_sort Modelling of fracture problems in quasi-brittle materials by the E-FEM
author MARASCA,C. Z. S.
author_facet MARASCA,C. Z. S.
BITTENCOURT,E.
BESSA,V. M. R. D.
author_role author
author2 BITTENCOURT,E.
BESSA,V. M. R. D.
author2_role author
author
dc.contributor.author.fl_str_mv MARASCA,C. Z. S.
BITTENCOURT,E.
BESSA,V. M. R. D.
dc.subject.por.fl_str_mv fracture
quasi-brittle material
elemental enrichment finite element method (E-FEM)
topic fracture
quasi-brittle material
elemental enrichment finite element method (E-FEM)
description Abstract In this paper a numerical model with strong discontinuities is presented to address fracture problems in quasi-brittle materials. A non-symmetrical statically and kinematically consistent formulation is implemented. The strong discontinuity in the displacement field is represented using the elemental enrichment finite element method (E-FEM). In other words, the strong discontinuity is introduced into the finite element and the additional degrees of freedom are condensed at the element level, allowing the implementation into existing computational codes. Two constitutive models are used to analyze the behavior of the cracked zone, linear and exponential. The exponential model results are closer to those obtained in experimental data and representative numerical simulations than the linear model.
publishDate 2018
dc.date.none.fl_str_mv 2018-04-01
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=S1983-41952018000200244
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952018000200244
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s1983-41952018000200002
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 IBRACON - Instituto Brasileiro do Concreto
publisher.none.fl_str_mv IBRACON - Instituto Brasileiro do Concreto
dc.source.none.fl_str_mv Revista IBRACON de Estruturas e Materiais v.11 n.2 2018
reponame:Revista IBRACON de Estruturas e Materiais
instname:Instituto Brasileiro do Concreto (IBRACON)
instacron:IBRACON
instname_str Instituto Brasileiro do Concreto (IBRACON)
instacron_str IBRACON
institution IBRACON
reponame_str Revista IBRACON de Estruturas e Materiais
collection Revista IBRACON de Estruturas e Materiais
repository.name.fl_str_mv Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)
repository.mail.fl_str_mv editores.riem@gmail.com||arlene@ibracon.org.br
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