Topology Optimization of continuum structures with epsilon-relaxed stress constraints
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | |
Tipo de documento: | Capítulo de livro |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/6306 |
Resumo: | Topology optimization of linear elastic continuum structures is a challenging problem when considering local stress constraints. The reasons are the singular behavior of the constraint with the density design variables, combined with the large number of constraints even for small finite element meshes. This work presents an alternative formulation for the s-relaxation technique, which provides an workaround for the singularity of the stress constraint. It also presents a new global stress constraint formulation. Derivation of the sensitivities for the constraint by the adjoint method is shown. Results for single and multiple load cases show the potential of the new formulation. |
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Topology Optimization of continuum structures with epsilon-relaxed stress constraintsTopology optimization of linear elastic continuum structures is a challenging problem when considering local stress constraints. The reasons are the singular behavior of the constraint with the density design variables, combined with the large number of constraints even for small finite element meshes. This work presents an alternative formulation for the s-relaxation technique, which provides an workaround for the singularity of the stress constraint. It also presents a new global stress constraint formulation. Derivation of the sensitivities for the constraint by the adjoint method is shown. Results for single and multiple load cases show the potential of the new formulation.2016-08-12T17:37:50Z2016-08-12T17:37:50Z2007info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/bookPartapplication/pdfGUILHERME; Carlos Eduardo Marcos; FONSECA, Jun Sérgio Ono. Topology Optimization of continuum structures with epsilon-relaxed stress constraints. Journal of the Brazilian Society of Mechanical Sciences and Engineering, v.1, p. 239-250, 2007. Disponível em: <http://www.lume.ufrgs.br/handle/10183/30286?locale=en>. Acesso em: 19 jun. 2015.1806-3691http://repositorio.furg.br/handle/1/6306engGuilherme, Carlos Eduardo MarcosFonseca, Jun Sérgio Onoinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2023-08-22T20:39:39Zoai:repositorio.furg.br:1/6306Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2023-08-22T20:39:39Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.none.fl_str_mv |
Topology Optimization of continuum structures with epsilon-relaxed stress constraints |
title |
Topology Optimization of continuum structures with epsilon-relaxed stress constraints |
spellingShingle |
Topology Optimization of continuum structures with epsilon-relaxed stress constraints Guilherme, Carlos Eduardo Marcos |
title_short |
Topology Optimization of continuum structures with epsilon-relaxed stress constraints |
title_full |
Topology Optimization of continuum structures with epsilon-relaxed stress constraints |
title_fullStr |
Topology Optimization of continuum structures with epsilon-relaxed stress constraints |
title_full_unstemmed |
Topology Optimization of continuum structures with epsilon-relaxed stress constraints |
title_sort |
Topology Optimization of continuum structures with epsilon-relaxed stress constraints |
author |
Guilherme, Carlos Eduardo Marcos |
author_facet |
Guilherme, Carlos Eduardo Marcos Fonseca, Jun Sérgio Ono |
author_role |
author |
author2 |
Fonseca, Jun Sérgio Ono |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Guilherme, Carlos Eduardo Marcos Fonseca, Jun Sérgio Ono |
description |
Topology optimization of linear elastic continuum structures is a challenging problem when considering local stress constraints. The reasons are the singular behavior of the constraint with the density design variables, combined with the large number of constraints even for small finite element meshes. This work presents an alternative formulation for the s-relaxation technique, which provides an workaround for the singularity of the stress constraint. It also presents a new global stress constraint formulation. Derivation of the sensitivities for the constraint by the adjoint method is shown. Results for single and multiple load cases show the potential of the new formulation. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007 2016-08-12T17:37:50Z 2016-08-12T17:37:50Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/bookPart |
format |
bookPart |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
GUILHERME; Carlos Eduardo Marcos; FONSECA, Jun Sérgio Ono. Topology Optimization of continuum structures with epsilon-relaxed stress constraints. Journal of the Brazilian Society of Mechanical Sciences and Engineering, v.1, p. 239-250, 2007. Disponível em: <http://www.lume.ufrgs.br/handle/10183/30286?locale=en>. Acesso em: 19 jun. 2015. 1806-3691 http://repositorio.furg.br/handle/1/6306 |
identifier_str_mv |
GUILHERME; Carlos Eduardo Marcos; FONSECA, Jun Sérgio Ono. Topology Optimization of continuum structures with epsilon-relaxed stress constraints. Journal of the Brazilian Society of Mechanical Sciences and Engineering, v.1, p. 239-250, 2007. Disponível em: <http://www.lume.ufrgs.br/handle/10183/30286?locale=en>. Acesso em: 19 jun. 2015. 1806-3691 |
url |
http://repositorio.furg.br/handle/1/6306 |
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 |
|
_version_ |
1807384395729862656 |