Sensitivity analysis and parameter estimation of heat transfer and material flow models in Friction Stir Welding

Autores
Pereyra, Sebastián; Lombera, Guillermo Alfredo; Urquiza, Santiago; Frontini, Gloria Lia
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Although numerical models of heat transfer and material flow have contributed to understand the underlying mechanisms of friction stir welding (FSW), there are certain input model parameters that can not be easily determined. Thus, the model predictions do not always agree with experimental results. In this work, sensitivity analysis and parameter estimation were applied to test heat transfer and material flow models. A forward-difference approximation was used to compute the sensitivity of the solution with respect to the unknown model parameters. The Levenberg-Marquardt (LM) method was applied to solve the nonlinear parameter estimation problem. The numerical models were developed by the finite element method (FEM). The way in which the unknown model parameters independently affect the results and the importance of the location of reference points that take part in the objective function were determined.
Fil: Pereyra, Sebastián. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata; Argentina
Fil: Lombera, Guillermo Alfredo. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata; Argentina
Fil: Urquiza, Santiago. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Frontini, Gloria Lia. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata; Argentina
Materia
Computational Fluid Dynamics (CFD);
finite element method;
Sensitivity Analysis
Friction stir welding(FSW)
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/7548
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/7548
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Sensitivity analysis and parameter estimation of heat transfer and material flow models in Friction Stir WeldingPereyra, SebastiánLombera, Guillermo AlfredoUrquiza, SantiagoFrontini, Gloria LiaComputational Fluid Dynamics (CFD);finite element method;Sensitivity AnalysisFriction stir welding(FSW)https://purl.org/becyt/ford/2.3https://purl.org/becyt/ford/2Although numerical models of heat transfer and material flow have contributed to understand the underlying mechanisms of friction stir welding (FSW), there are certain input model parameters that can not be easily determined. Thus, the model predictions do not always agree with experimental results. In this work, sensitivity analysis and parameter estimation were applied to test heat transfer and material flow models. A forward-difference approximation was used to compute the sensitivity of the solution with respect to the unknown model parameters. The Levenberg-Marquardt (LM) method was applied to solve the nonlinear parameter estimation problem. The numerical models were developed by the finite element method (FEM). The way in which the unknown model parameters independently affect the results and the importance of the location of reference points that take part in the objective function were determined.Fil: Pereyra, Sebastián. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata; ArgentinaFil: Lombera, Guillermo Alfredo. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata; ArgentinaFil: Urquiza, Santiago. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaFil: Frontini, Gloria Lia. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata; ArgentinaUniversidad Federal de Sao Carlos2014-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/7548Pereyra, Sebastián; Lombera, Guillermo Alfredo; Urquiza, Santiago; Frontini, Gloria Lia; Sensitivity analysis and parameter estimation of heat transfer and material flow models in Friction Stir Welding; Universidad Federal de Sao Carlos; Materials Research; 17; 2; 11-2014; 397-4041516-1439enginfo:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/23ydcdinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:57:39Zoai:ri.conicet.gov.ar:11336/7548instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:57:39.678CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Sensitivity analysis and parameter estimation of heat transfer and material flow models in Friction Stir Welding
title Sensitivity analysis and parameter estimation of heat transfer and material flow models in Friction Stir Welding
spellingShingle Sensitivity analysis and parameter estimation of heat transfer and material flow models in Friction Stir Welding
Pereyra, Sebastián
Computational Fluid Dynamics (CFD);
finite element method;
Sensitivity Analysis
Friction stir welding(FSW)
title_short Sensitivity analysis and parameter estimation of heat transfer and material flow models in Friction Stir Welding
title_full Sensitivity analysis and parameter estimation of heat transfer and material flow models in Friction Stir Welding
title_fullStr Sensitivity analysis and parameter estimation of heat transfer and material flow models in Friction Stir Welding
title_full_unstemmed Sensitivity analysis and parameter estimation of heat transfer and material flow models in Friction Stir Welding
title_sort Sensitivity analysis and parameter estimation of heat transfer and material flow models in Friction Stir Welding
dc.creator.none.fl_str_mv Pereyra, Sebastián
Lombera, Guillermo Alfredo
Urquiza, Santiago
Frontini, Gloria Lia
author Pereyra, Sebastián
author_facet Pereyra, Sebastián
Lombera, Guillermo Alfredo
Urquiza, Santiago
Frontini, Gloria Lia
author_role author
author2 Lombera, Guillermo Alfredo
Urquiza, Santiago
Frontini, Gloria Lia
author2_role author
author
author
dc.subject.none.fl_str_mv Computational Fluid Dynamics (CFD);
finite element method;
Sensitivity Analysis
Friction stir welding(FSW)
topic Computational Fluid Dynamics (CFD);
finite element method;
Sensitivity Analysis
Friction stir welding(FSW)
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.3
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Although numerical models of heat transfer and material flow have contributed to understand the underlying mechanisms of friction stir welding (FSW), there are certain input model parameters that can not be easily determined. Thus, the model predictions do not always agree with experimental results. In this work, sensitivity analysis and parameter estimation were applied to test heat transfer and material flow models. A forward-difference approximation was used to compute the sensitivity of the solution with respect to the unknown model parameters. The Levenberg-Marquardt (LM) method was applied to solve the nonlinear parameter estimation problem. The numerical models were developed by the finite element method (FEM). The way in which the unknown model parameters independently affect the results and the importance of the location of reference points that take part in the objective function were determined.
Fil: Pereyra, Sebastián. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata; Argentina
Fil: Lombera, Guillermo Alfredo. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata; Argentina
Fil: Urquiza, Santiago. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Frontini, Gloria Lia. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata; Argentina
description Although numerical models of heat transfer and material flow have contributed to understand the underlying mechanisms of friction stir welding (FSW), there are certain input model parameters that can not be easily determined. Thus, the model predictions do not always agree with experimental results. In this work, sensitivity analysis and parameter estimation were applied to test heat transfer and material flow models. A forward-difference approximation was used to compute the sensitivity of the solution with respect to the unknown model parameters. The Levenberg-Marquardt (LM) method was applied to solve the nonlinear parameter estimation problem. The numerical models were developed by the finite element method (FEM). The way in which the unknown model parameters independently affect the results and the importance of the location of reference points that take part in the objective function were determined.
publishDate 2014
dc.date.none.fl_str_mv 2014-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/7548
Pereyra, Sebastián; Lombera, Guillermo Alfredo; Urquiza, Santiago; Frontini, Gloria Lia; Sensitivity analysis and parameter estimation of heat transfer and material flow models in Friction Stir Welding; Universidad Federal de Sao Carlos; Materials Research; 17; 2; 11-2014; 397-404
1516-1439
url http://hdl.handle.net/11336/7548
identifier_str_mv Pereyra, Sebastián; Lombera, Guillermo Alfredo; Urquiza, Santiago; Frontini, Gloria Lia; Sensitivity analysis and parameter estimation of heat transfer and material flow models in Friction Stir Welding; Universidad Federal de Sao Carlos; Materials Research; 17; 2; 11-2014; 397-404
1516-1439
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/23ydcd
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Universidad Federal de Sao Carlos
publisher.none.fl_str_mv Universidad Federal de Sao Carlos
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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