Multi-scale representation of plastic deformation in fiber-reinforced materials: application to reinforced concrete
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Latin American journal of solids and structures (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252019000700706 |
Resumo: | Abstract Here we present a multi-scale model to carry out the computation of brittle composite materials reinforced with fibers, and we show its application to standard reinforced concrete. The computation is carried out within an operator-split framework on the macro-scale, which allows for different failure mechanisms to develop in separate phases, as both the concrete and the bond-slip exhibit non-linear behavior. The computations on the micro-scale are performed for each constituent separately. The reinforcement is taken to be linear elastic, and the bond-slip is handled as a plastic deformation. The standard elastoplastic procedure is used to compute the bond stresses, combined with the X-FEM methodology to give the global representation of slip. The crack development in concrete, on the other hand, is described with a damage model with exponential softening, where ED-FEM is used to represent localized failure. A numerical example is shown to test the developed methodology. |
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oai:scielo:S1679-78252019000700706 |
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Latin American journal of solids and structures (Online) |
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|
spelling |
Multi-scale representation of plastic deformation in fiber-reinforced materials: application to reinforced concretebond-slipdamageplasticitymulti-scalereinforced concreteAbstract Here we present a multi-scale model to carry out the computation of brittle composite materials reinforced with fibers, and we show its application to standard reinforced concrete. The computation is carried out within an operator-split framework on the macro-scale, which allows for different failure mechanisms to develop in separate phases, as both the concrete and the bond-slip exhibit non-linear behavior. The computations on the micro-scale are performed for each constituent separately. The reinforcement is taken to be linear elastic, and the bond-slip is handled as a plastic deformation. The standard elastoplastic procedure is used to compute the bond stresses, combined with the X-FEM methodology to give the global representation of slip. The crack development in concrete, on the other hand, is described with a damage model with exponential softening, where ED-FEM is used to represent localized failure. A numerical example is shown to test the developed methodology.Associação Brasileira de Ciências Mecânicas2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252019000700706Latin American Journal of Solids and Structures v.16 n.7 2019reponame:Latin American journal of solids and structures (Online)instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)instacron:ABCM10.1590/1679-78255341info:eu-repo/semantics/openAccessRukavina,TeaIbrahimbegovic,AdnanKozar,Ivicaeng2019-08-06T00:00:00Zoai:scielo:S1679-78252019000700706Revistahttp://www.scielo.br/scielo.php?script=sci_serial&pid=1679-7825&lng=pt&nrm=isohttps://old.scielo.br/oai/scielo-oai.phpabcm@abcm.org.br||maralves@usp.br1679-78251679-7817opendoar:2019-08-06T00:00Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM)false |
dc.title.none.fl_str_mv |
Multi-scale representation of plastic deformation in fiber-reinforced materials: application to reinforced concrete |
title |
Multi-scale representation of plastic deformation in fiber-reinforced materials: application to reinforced concrete |
spellingShingle |
Multi-scale representation of plastic deformation in fiber-reinforced materials: application to reinforced concrete Rukavina,Tea bond-slip damage plasticity multi-scale reinforced concrete |
title_short |
Multi-scale representation of plastic deformation in fiber-reinforced materials: application to reinforced concrete |
title_full |
Multi-scale representation of plastic deformation in fiber-reinforced materials: application to reinforced concrete |
title_fullStr |
Multi-scale representation of plastic deformation in fiber-reinforced materials: application to reinforced concrete |
title_full_unstemmed |
Multi-scale representation of plastic deformation in fiber-reinforced materials: application to reinforced concrete |
title_sort |
Multi-scale representation of plastic deformation in fiber-reinforced materials: application to reinforced concrete |
author |
Rukavina,Tea |
author_facet |
Rukavina,Tea Ibrahimbegovic,Adnan Kozar,Ivica |
author_role |
author |
author2 |
Ibrahimbegovic,Adnan Kozar,Ivica |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Rukavina,Tea Ibrahimbegovic,Adnan Kozar,Ivica |
dc.subject.por.fl_str_mv |
bond-slip damage plasticity multi-scale reinforced concrete |
topic |
bond-slip damage plasticity multi-scale reinforced concrete |
description |
Abstract Here we present a multi-scale model to carry out the computation of brittle composite materials reinforced with fibers, and we show its application to standard reinforced concrete. The computation is carried out within an operator-split framework on the macro-scale, which allows for different failure mechanisms to develop in separate phases, as both the concrete and the bond-slip exhibit non-linear behavior. The computations on the micro-scale are performed for each constituent separately. The reinforcement is taken to be linear elastic, and the bond-slip is handled as a plastic deformation. The standard elastoplastic procedure is used to compute the bond stresses, combined with the X-FEM methodology to give the global representation of slip. The crack development in concrete, on the other hand, is described with a damage model with exponential softening, where ED-FEM is used to represent localized failure. A numerical example is shown to test the developed methodology. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 |
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=S1679-78252019000700706 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252019000700706 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1679-78255341 |
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 |
Associação Brasileira de Ciências Mecânicas |
publisher.none.fl_str_mv |
Associação Brasileira de Ciências Mecânicas |
dc.source.none.fl_str_mv |
Latin American Journal of Solids and Structures v.16 n.7 2019 reponame:Latin American journal of solids and structures (Online) instname:Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) instacron:ABCM |
instname_str |
Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) |
instacron_str |
ABCM |
institution |
ABCM |
reponame_str |
Latin American journal of solids and structures (Online) |
collection |
Latin American journal of solids and structures (Online) |
repository.name.fl_str_mv |
Latin American journal of solids and structures (Online) - Associação Brasileira de Engenharia e Ciências Mecânicas (ABCM) |
repository.mail.fl_str_mv |
abcm@abcm.org.br||maralves@usp.br |
_version_ |
1754302890097246208 |