Sensitivity analysis of the ECAE process via 2k experiments design

Detalhes bibliográficos
Autor(a) principal: Medeiros,Neil de
Data de Publicação: 2010
Outros Autores: Moreira,Luciano Pessanha, Bressan,José Divo, Lins,Jefferson Fabrício Cardoso, Gouvêa,Jayme Pereira de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Matéria (Rio de Janeiro. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762010000200018
Resumo: In this work the theoretical solutions based upon the upper-bound theorem recently proposed by Pérez and Luri [Mech. Mater. 40 (2008) 617] for the equal channel angular extrusion process (ECAE) are analyzed by performing a 25 central composite factorial analysis. The uniaxial mechanical properties of commercial pure aluminium are considered by assuming isotropic nonlinear work-hardening combined to von Mises and Drucker isotropic yield criteria to predict the ECAE load and the effective plastic strain. From the proposed 25 factorial analysis, the main parameters affecting the ECAE pressure may be ranked as: (1) Friction factor, (2) die channels intersection angle, (3) outer and (4) inner die corners fillet radii and lastly, (5) plunger velocity. Alternatively, the effective plastic strain is mainly controlled by the die channels intersection angle and, in a less extent, by the outer and inner die corners fillet radii.
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spelling Sensitivity analysis of the ECAE process via 2k experiments designUpper-bound theoremfactorial analysisequal channel angular extrusionIn this work the theoretical solutions based upon the upper-bound theorem recently proposed by Pérez and Luri [Mech. Mater. 40 (2008) 617] for the equal channel angular extrusion process (ECAE) are analyzed by performing a 25 central composite factorial analysis. The uniaxial mechanical properties of commercial pure aluminium are considered by assuming isotropic nonlinear work-hardening combined to von Mises and Drucker isotropic yield criteria to predict the ECAE load and the effective plastic strain. From the proposed 25 factorial analysis, the main parameters affecting the ECAE pressure may be ranked as: (1) Friction factor, (2) die channels intersection angle, (3) outer and (4) inner die corners fillet radii and lastly, (5) plunger velocity. Alternatively, the effective plastic strain is mainly controlled by the die channels intersection angle and, in a less extent, by the outer and inner die corners fillet radii.Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiroem cooperação com a Associação Brasileira do Hidrogênio, ABH22010-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762010000200018Matéria (Rio de Janeiro) v.15 n.2 2010reponame:Matéria (Rio de Janeiro. Online)instname:Matéria (Rio de Janeiro. Online)instacron:RLAM10.1590/S1517-70762010000200018info:eu-repo/semantics/openAccessMedeiros,Neil deMoreira,Luciano PessanhaBressan,José DivoLins,Jefferson Fabrício CardosoGouvêa,Jayme Pereira deeng2010-08-27T00:00:00Zoai:scielo:S1517-70762010000200018Revistahttp://www.materia.coppe.ufrj.br/https://old.scielo.br/oai/scielo-oai.php||materia@labh2.coppe.ufrj.br1517-70761517-7076opendoar:2010-08-27T00:00Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online)false
dc.title.none.fl_str_mv Sensitivity analysis of the ECAE process via 2k experiments design
title Sensitivity analysis of the ECAE process via 2k experiments design
spellingShingle Sensitivity analysis of the ECAE process via 2k experiments design
Medeiros,Neil de
Upper-bound theorem
factorial analysis
equal channel angular extrusion
title_short Sensitivity analysis of the ECAE process via 2k experiments design
title_full Sensitivity analysis of the ECAE process via 2k experiments design
title_fullStr Sensitivity analysis of the ECAE process via 2k experiments design
title_full_unstemmed Sensitivity analysis of the ECAE process via 2k experiments design
title_sort Sensitivity analysis of the ECAE process via 2k experiments design
author Medeiros,Neil de
author_facet Medeiros,Neil de
Moreira,Luciano Pessanha
Bressan,José Divo
Lins,Jefferson Fabrício Cardoso
Gouvêa,Jayme Pereira de
author_role author
author2 Moreira,Luciano Pessanha
Bressan,José Divo
Lins,Jefferson Fabrício Cardoso
Gouvêa,Jayme Pereira de
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Medeiros,Neil de
Moreira,Luciano Pessanha
Bressan,José Divo
Lins,Jefferson Fabrício Cardoso
Gouvêa,Jayme Pereira de
dc.subject.por.fl_str_mv Upper-bound theorem
factorial analysis
equal channel angular extrusion
topic Upper-bound theorem
factorial analysis
equal channel angular extrusion
description In this work the theoretical solutions based upon the upper-bound theorem recently proposed by Pérez and Luri [Mech. Mater. 40 (2008) 617] for the equal channel angular extrusion process (ECAE) are analyzed by performing a 25 central composite factorial analysis. The uniaxial mechanical properties of commercial pure aluminium are considered by assuming isotropic nonlinear work-hardening combined to von Mises and Drucker isotropic yield criteria to predict the ECAE load and the effective plastic strain. From the proposed 25 factorial analysis, the main parameters affecting the ECAE pressure may be ranked as: (1) Friction factor, (2) die channels intersection angle, (3) outer and (4) inner die corners fillet radii and lastly, (5) plunger velocity. Alternatively, the effective plastic strain is mainly controlled by the die channels intersection angle and, in a less extent, by the outer and inner die corners fillet radii.
publishDate 2010
dc.date.none.fl_str_mv 2010-01-01
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=S1517-70762010000200018
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762010000200018
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1517-70762010000200018
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 Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro
em cooperação com a Associação Brasileira do Hidrogênio, ABH2
publisher.none.fl_str_mv Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro
em cooperação com a Associação Brasileira do Hidrogênio, ABH2
dc.source.none.fl_str_mv Matéria (Rio de Janeiro) v.15 n.2 2010
reponame:Matéria (Rio de Janeiro. Online)
instname:Matéria (Rio de Janeiro. Online)
instacron:RLAM
instname_str Matéria (Rio de Janeiro. Online)
instacron_str RLAM
institution RLAM
reponame_str Matéria (Rio de Janeiro. Online)
collection Matéria (Rio de Janeiro. Online)
repository.name.fl_str_mv Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online)
repository.mail.fl_str_mv ||materia@labh2.coppe.ufrj.br
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