Mostrar el registro sencillo del ítem

dc.contributor.author
Pereyra, Sebastián  
dc.contributor.author
Lombera, Guillermo Alfredo  
dc.contributor.author
Urquiza, Santiago  
dc.contributor.author
Frontini, Gloria Lia  
dc.date.available
2016-09-07T20:14:24Z  
dc.date.issued
2014-11  
dc.identifier.citation
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  
dc.identifier.issn
1516-1439  
dc.identifier.uri
http://hdl.handle.net/11336/7548  
dc.description.abstract
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.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Universidad Federal de Sao Carlos  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Computational Fluid Dynamics (Cfd);  
dc.subject
Finite Element Method;  
dc.subject
Sensitivity Analysis  
dc.subject
Friction Stir Welding(Fsw)  
dc.subject.classification
Mecánica Aplicada  
dc.subject.classification
Ingeniería Mecánica  
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS  
dc.title
Sensitivity analysis and parameter estimation of heat transfer and material flow models in Friction Stir Welding  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2016-03-21T18:58:27Z  
dc.journal.volume
17  
dc.journal.number
2  
dc.journal.pagination
397-404  
dc.journal.pais
Brasil  
dc.journal.ciudad
São Paulo  
dc.description.fil
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  
dc.description.fil
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  
dc.description.fil
Fil: Urquiza, Santiago. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina  
dc.description.fil
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  
dc.journal.title
Materials Research  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://ref.scielo.org/23ydcd