Numerical simulation and constructal theory applied for geometric optimization of thin perforated plates subject to elastic buckling
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/5019 |
Resumo: | Many elements in engineering are formed by thin plates. Hulls and decks of ships are examples of application. These elements can have holes that serve as inspection port, access or even to weight reduction. The presence of holes causes a redistribution of the membrane stresses in the plate, significantly altering their stability. In this paper the Bejan’s Constructal Theory was employed to discover the best geometry of thin perforated plates submitted to elastic buckling phenomenon. To study this behavior simply supported rectangular plates with a centered elliptical perforation were analyzed. The purpose was to obtain the optimal geometry which maximizes the critical buckling load. For this, the degrees of freedom H/L (ratio between width and length of the plate) and H0/L0 (ratio between the characteristic dimensions of the hole) were varied. Moreover, different values of hole volume fraction ϕ (ratio between the perforation volume and the massive plate volume) were also investigated. A computational modeling, based on the Finite Element Method (FEM), was used for assessing the plate buckling load. The results showed that Constructal Design can be employed not only in the heat transfer and fluid flow problems, but also to define the best shapes in solid mechanics problems. |
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Numerical simulation and constructal theory applied for geometric optimization of thin perforated plates subject to elastic bucklingNumerical simulationConstructal theoryElastic bucklingMany elements in engineering are formed by thin plates. Hulls and decks of ships are examples of application. These elements can have holes that serve as inspection port, access or even to weight reduction. The presence of holes causes a redistribution of the membrane stresses in the plate, significantly altering their stability. In this paper the Bejan’s Constructal Theory was employed to discover the best geometry of thin perforated plates submitted to elastic buckling phenomenon. To study this behavior simply supported rectangular plates with a centered elliptical perforation were analyzed. The purpose was to obtain the optimal geometry which maximizes the critical buckling load. For this, the degrees of freedom H/L (ratio between width and length of the plate) and H0/L0 (ratio between the characteristic dimensions of the hole) were varied. Moreover, different values of hole volume fraction ϕ (ratio between the perforation volume and the massive plate volume) were also investigated. A computational modeling, based on the Finite Element Method (FEM), was used for assessing the plate buckling load. The results showed that Constructal Design can be employed not only in the heat transfer and fluid flow problems, but also to define the best shapes in solid mechanics problems.2015-06-10T19:02:32Z2015-06-10T19:02:32Z2013info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectapplication/pdfCORREIA, Anderson Luis Garcia et al. Numerical simulation and constructal theory applied for geometric optimization of thin perforated plates subject to elastic buckling . In: IBERIAN LATIN-AMERICAN CONGRESS ON COMPUTATIONAL METHODS IN ENGINEERING, 34., 2013, Pirenópolis. Anais… Pirenópolis: Associação Brasileira de Métodos Computacionais em Engenharia - ABMEC, 2013. Disponível em: <http://www.swge.inf.br/sitecilamce2013/cd/PDFS/CILAMCE2013-0579.PDF>. Acesso em: 10 jun. 2015.http://repositorio.furg.br/handle/1/5019engCorreia, Anderson Luis GarciaHelbig, DanielReal, Mauro de VasconcellosSantos, Elizaldo Domingues dosIsoldi, Liércio Andréinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2015-06-10T19:02:32Zoai:repositorio.furg.br:1/5019Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2015-06-10T19:02:32Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.none.fl_str_mv |
Numerical simulation and constructal theory applied for geometric optimization of thin perforated plates subject to elastic buckling |
title |
Numerical simulation and constructal theory applied for geometric optimization of thin perforated plates subject to elastic buckling |
spellingShingle |
Numerical simulation and constructal theory applied for geometric optimization of thin perforated plates subject to elastic buckling Correia, Anderson Luis Garcia Numerical simulation Constructal theory Elastic buckling |
title_short |
Numerical simulation and constructal theory applied for geometric optimization of thin perforated plates subject to elastic buckling |
title_full |
Numerical simulation and constructal theory applied for geometric optimization of thin perforated plates subject to elastic buckling |
title_fullStr |
Numerical simulation and constructal theory applied for geometric optimization of thin perforated plates subject to elastic buckling |
title_full_unstemmed |
Numerical simulation and constructal theory applied for geometric optimization of thin perforated plates subject to elastic buckling |
title_sort |
Numerical simulation and constructal theory applied for geometric optimization of thin perforated plates subject to elastic buckling |
author |
Correia, Anderson Luis Garcia |
author_facet |
Correia, Anderson Luis Garcia Helbig, Daniel Real, Mauro de Vasconcellos Santos, Elizaldo Domingues dos Isoldi, Liércio André |
author_role |
author |
author2 |
Helbig, Daniel Real, Mauro de Vasconcellos Santos, Elizaldo Domingues dos Isoldi, Liércio André |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Correia, Anderson Luis Garcia Helbig, Daniel Real, Mauro de Vasconcellos Santos, Elizaldo Domingues dos Isoldi, Liércio André |
dc.subject.por.fl_str_mv |
Numerical simulation Constructal theory Elastic buckling |
topic |
Numerical simulation Constructal theory Elastic buckling |
description |
Many elements in engineering are formed by thin plates. Hulls and decks of ships are examples of application. These elements can have holes that serve as inspection port, access or even to weight reduction. The presence of holes causes a redistribution of the membrane stresses in the plate, significantly altering their stability. In this paper the Bejan’s Constructal Theory was employed to discover the best geometry of thin perforated plates submitted to elastic buckling phenomenon. To study this behavior simply supported rectangular plates with a centered elliptical perforation were analyzed. The purpose was to obtain the optimal geometry which maximizes the critical buckling load. For this, the degrees of freedom H/L (ratio between width and length of the plate) and H0/L0 (ratio between the characteristic dimensions of the hole) were varied. Moreover, different values of hole volume fraction ϕ (ratio between the perforation volume and the massive plate volume) were also investigated. A computational modeling, based on the Finite Element Method (FEM), was used for assessing the plate buckling load. The results showed that Constructal Design can be employed not only in the heat transfer and fluid flow problems, but also to define the best shapes in solid mechanics problems. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013 2015-06-10T19:02:32Z 2015-06-10T19:02:32Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
CORREIA, Anderson Luis Garcia et al. Numerical simulation and constructal theory applied for geometric optimization of thin perforated plates subject to elastic buckling . In: IBERIAN LATIN-AMERICAN CONGRESS ON COMPUTATIONAL METHODS IN ENGINEERING, 34., 2013, Pirenópolis. Anais… Pirenópolis: Associação Brasileira de Métodos Computacionais em Engenharia - ABMEC, 2013. Disponível em: <http://www.swge.inf.br/sitecilamce2013/cd/PDFS/CILAMCE2013-0579.PDF>. Acesso em: 10 jun. 2015. http://repositorio.furg.br/handle/1/5019 |
identifier_str_mv |
CORREIA, Anderson Luis Garcia et al. Numerical simulation and constructal theory applied for geometric optimization of thin perforated plates subject to elastic buckling . In: IBERIAN LATIN-AMERICAN CONGRESS ON COMPUTATIONAL METHODS IN ENGINEERING, 34., 2013, Pirenópolis. Anais… Pirenópolis: Associação Brasileira de Métodos Computacionais em Engenharia - ABMEC, 2013. Disponível em: <http://www.swge.inf.br/sitecilamce2013/cd/PDFS/CILAMCE2013-0579.PDF>. Acesso em: 10 jun. 2015. |
url |
http://repositorio.furg.br/handle/1/5019 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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.source.none.fl_str_mv |
reponame:Repositório Institucional da FURG (RI FURG) instname:Universidade Federal do Rio Grande (FURG) instacron:FURG |
instname_str |
Universidade Federal do Rio Grande (FURG) |
instacron_str |
FURG |
institution |
FURG |
reponame_str |
Repositório Institucional da FURG (RI FURG) |
collection |
Repositório Institucional da FURG (RI FURG) |
repository.name.fl_str_mv |
Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG) |
repository.mail.fl_str_mv |
|
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1807384364564086784 |