Exploració per autor "Dialami, Narges"
Ara es mostren els items 1-10 de 10
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A computational model for the numerical simulation of FSW processes
Agelet de Saracibar Bosch, Carlos; Chiumenti, Michele; Santiago, Diego; Cervera Ruiz, Miguel; Dialami, Narges; Lombera, Guillermo (Springer, 2010)
Text en actes de congrés
Accés restringit per política de l'editorialIn this paper a computational model for the numerical simulation of Friction Stir Welding (FSW) processes is presented. FSW is a new method of welding in solid state in which a shouldered tool with a profile probe is rotated ... -
A fast and accurate two-stage strategy to evaluate the effect of the pin tool profile on metal flow, torque and forces in friction stir welding
Dialami, Narges; Cervera Ruiz, Miguel; Chiumenti, Michele; Agelet de Saracibar Bosch, Carlos (2017-03-01)
Article
Accés obertPin geometry is a fundamental consideration in friction stir welding (FSW). It influences the thermal behaviour, material flow and forces during the weld and reflects on the joint quality. This work studies four pin ... -
A novel stress-accurate FE technology for highly non-linear analysis with incompressibility constraint: application to the numerical simulation of the FSW process
Chiumenti, Michele; Cervera Ruiz, Miguel; Agelet de Saracibar Bosch, Carlos; Dialami, Narges (American Institute of Physics (AIP), 2013)
Text en actes de congrés
Accés restringit per política de l'editorialIn this work a novel finite element technology based on a three-field mixed formulation is presented. The Variational Multi Scale (VMS) method is used to circumvent the LBB stability condition allowing the use of linear ... -
A strategy for the numerical simulation of metal deposition and multi-pass welding processes
Dialami, Narges; Chiumenti, Michele; Agelet de Saracibar Bosch, Carlos; Cervera Ruiz, Miguel (Centro Internacional de Métodos Numéricos en Ingeniería (CIMNE), 2009)
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Accés restringit per política de l'editorialIn this work a numerical model is developed to accurately predict temperature evolution and distortions associated to the successive welding layers deposited during the multi-pass welding and metal deposition processes (MD). -
Advances in the numerical simulation of 3D FSW processes
Agelet de Saracibar Bosch, Carlos; Chiumenti, Michele; Cervera Ruiz, Miguel; Dialami, Narges; Santiago, Diego; Lombera, Guillermo (2011)
Text en actes de congrés
Accés restringit per política de l'editorialThis work deals with the computational modeling and numerical simulation of 3D Friction Stir Welding (FSW) processes. Eulerian and ALE formulations have been used to solve the quasi-static thermal transient governing ... -
Computational modeling of multi-pass welding and metal deposition processes
Chiumenti, Michele; Cervera Ruiz, Miguel; Dialami, Narges; Agelet de Saracibar Bosch, Carlos (European Scientific Association For Material Forming (ESAFORM), 2009)
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Accés restringit per política de l'editorialIn this work a computational model for the numerical simulation of multi-pass welding and metal deposition processes is presented. A fully coupled thermo-mechanical solution, including phase-change phenomena and shrinkage ... -
Enhanced friction model for Friction Stir Welding (FSW) analysis: simulation and experimental validation
Dialami, Narges; Chiumenti, Michele; Cervera Ruiz, Miguel; Segatori, A.; Osikowicz, W. (2017-11)
Article
Accés obertFriction is one of the main heat generation mechanisms in Friction Stir Welding (FSW). This phenomenon occurs between the pin and the workpiece as the rotating tool moves along the weld line. An accurate friction model is ... -
Local–global strategy for the prediction of residual stresses in FSW processes
Dialami, Narges; Cervera Ruiz, Miguel; Chiumenti, Michele; Agelet de Saracibar Bosch, Carlos (2017-02)
Article
Accés obertThis work describes the local–global strategy proposed for the computation of residual stresses in friction stir welding (FSW) processes. A coupling strategy between the analysis of the process zone nearby the pin tool ... -
Numerical modeling of the electron beam welding and its experimental validation
Chiumenti, Michele; Cervera Ruiz, Miguel; Dialami, Narges; Wu, Bin; Jinwei, L.; Agelet de Saracibar Bosch, Carlos (2016-11)
Article
Accés obertElectron Beam Welding (EBW) is a highly efficient and precise welding method increasingly used within the manufacturing chain and of growing importance in different industrial environments such as the aeronautical and ... -
On the computational modeling of FSW processes
Agelet de Saracibar Bosch, Carlos; Chiumenti, Michele; Santiago, Diego; Cervera Ruiz, Miguel; Dialami, Narges; Lombera, Guillermo (NEAT Press, 2010)
Text en actes de congrés
Accés restringit per política de l'editorialThis work deals with the computational modeling and numerical simulation of Friction Stir Welding (FSW) processes. Here a quasi-static, transient, mixed stabilized Eulerian formulation is used. Norton-Hoff and Sheppard-Wright ...