Topology optimization of cellular materials with periodic microstructure under stress constraints

Detalhes bibliográficos
Autor(a) principal: Coelho, Pedro G.
Data de Publicação: 2019
Outros Autores: Guedes, José M., Cardoso, João B.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://doi.org/10.1007/s00158-018-2089-x
Resumo: This work was partially supported by Fundacao para a Ciencia e a Tecnologia (Portugal) through the projects UID/EMS/00667/2013, UID/EMS/50022/2013, and PTDC/EMS-PRO/4732/2014.
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spelling Topology optimization of cellular materials with periodic microstructure under stress constraintsConvergenceHomogenizationMicrostructuresOptimizationStressTopologySoftwareControl and Systems EngineeringComputer Science ApplicationsComputer Graphics and Computer-Aided DesignControl and OptimizationThis work was partially supported by Fundacao para a Ciencia e a Tecnologia (Portugal) through the projects UID/EMS/00667/2013, UID/EMS/50022/2013, and PTDC/EMS-PRO/4732/2014.Material design is a critical development area for industries dealing with lightweight construction. Trying to respond to these industrial needs topology optimization has been extended from structural optimization to the design of material microstructures to improve overall structural performance. Traditional formulations based on compliance and volume control result in stiffness-oriented optimal designs. However, strength-oriented designs are crucial in engineering practice. Topology optimization with stress control has been applied mainly to (macro) structures, but here it is applied to material microstructure design. Here, in the context of density-based topology optimization, well-established techniques and analyses are used to address known difficulties of stress control in optimization problems. A convergence analysis is performed and a density filtering technique is used to minimize the risk of results inaccuracy due to coarser finite element meshes associated with highly non-linear stress behavior. A stress-constraint relaxation technique (qp-approach) is applied to overcome the singularity phenomenon. Parallel computing is used to minimize the impact of the local nature of the stress constraints and the finite difference design sensitivities on the overall computational cost of the problem. Finally, several examples test the developed model showing its inherent difficulties.UNIDEMI - Unidade de Investigação e Desenvolvimento em Engenharia Mecânica e IndustrialDEMI - Departamento de Engenharia Mecânica e IndustrialRUNCoelho, Pedro G.Guedes, José M.Cardoso, João B.2019-09-25T22:38:06Z2019-02-152019-02-15T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article13application/pdfhttps://doi.org/10.1007/s00158-018-2089-xeng1615-147XPURE: 11638923http://www.scopus.com/inward/record.url?scp=85053858200&partnerID=8YFLogxKhttps://doi.org/10.1007/s00158-018-2089-xinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T04:36:34Zoai:run.unl.pt:10362/82334Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:36:10.585358Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Topology optimization of cellular materials with periodic microstructure under stress constraints
title Topology optimization of cellular materials with periodic microstructure under stress constraints
spellingShingle Topology optimization of cellular materials with periodic microstructure under stress constraints
Coelho, Pedro G.
Convergence
Homogenization
Microstructures
Optimization
Stress
Topology
Software
Control and Systems Engineering
Computer Science Applications
Computer Graphics and Computer-Aided Design
Control and Optimization
title_short Topology optimization of cellular materials with periodic microstructure under stress constraints
title_full Topology optimization of cellular materials with periodic microstructure under stress constraints
title_fullStr Topology optimization of cellular materials with periodic microstructure under stress constraints
title_full_unstemmed Topology optimization of cellular materials with periodic microstructure under stress constraints
title_sort Topology optimization of cellular materials with periodic microstructure under stress constraints
author Coelho, Pedro G.
author_facet Coelho, Pedro G.
Guedes, José M.
Cardoso, João B.
author_role author
author2 Guedes, José M.
Cardoso, João B.
author2_role author
author
dc.contributor.none.fl_str_mv UNIDEMI - Unidade de Investigação e Desenvolvimento em Engenharia Mecânica e Industrial
DEMI - Departamento de Engenharia Mecânica e Industrial
RUN
dc.contributor.author.fl_str_mv Coelho, Pedro G.
Guedes, José M.
Cardoso, João B.
dc.subject.por.fl_str_mv Convergence
Homogenization
Microstructures
Optimization
Stress
Topology
Software
Control and Systems Engineering
Computer Science Applications
Computer Graphics and Computer-Aided Design
Control and Optimization
topic Convergence
Homogenization
Microstructures
Optimization
Stress
Topology
Software
Control and Systems Engineering
Computer Science Applications
Computer Graphics and Computer-Aided Design
Control and Optimization
description This work was partially supported by Fundacao para a Ciencia e a Tecnologia (Portugal) through the projects UID/EMS/00667/2013, UID/EMS/50022/2013, and PTDC/EMS-PRO/4732/2014.
publishDate 2019
dc.date.none.fl_str_mv 2019-09-25T22:38:06Z
2019-02-15
2019-02-15T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv https://doi.org/10.1007/s00158-018-2089-x
url https://doi.org/10.1007/s00158-018-2089-x
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 1615-147X
PURE: 11638923
http://www.scopus.com/inward/record.url?scp=85053858200&partnerID=8YFLogxK
https://doi.org/10.1007/s00158-018-2089-x
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eu_rights_str_mv openAccess
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application/pdf
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instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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