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dc.contributor.authorBussetta, P.
dc.contributor.authorDialamishabankareh, Narges
dc.contributor.authorBoman, Romain
dc.contributor.authorChiumenti, Michele
dc.contributor.authorAgelet de Saracibar Bosch, Carlos
dc.contributor.authorCervera Ruiz, Miguel
dc.contributor.authorPonthot, J-P.
dc.description.abstractFriction stir welding (FSW) process is a solid-state joining process during which materials to be joined are not melted. As a consequence, the heat-affected zone is smaller and the quality of the weld is better with respect to more classical welding processes. Because of extremely high strains in the neighborhood of the tool, classical numerical simulation techniques have to be extended in order to track the correct material deformations. The Arbitrary Lagrangian–Eulerian (ALE) formulation is used to preserve a good mesh quality throughout the computation. With this formulation, the mesh displacement is independent from the material displacement. Moreover, some advanced numerical techniques such as remeshing or a special computation of transition interface is needed to take into account non-cylindrical tools. During the FSW process, the behavior of the material in the neighborhood of the tool is at the interface between solid mechanics and fluid mechanics. Consequently, a numerical model of the FSW process based on a solid formulation is compared to another one based on a fluid formulation. It is shown that these two formulations essentially deliver the same results in terms of pressures and temperatures.
dc.format.extent12 p.
dc.subjectÀrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits
dc.subject.lcshFinite element method
dc.subject.lcshCoupled problems (Complex systems) -- Numerical solutions
dc.subject.otherFriction Stir Welding (FSW), Finite Element Method, Remeshing, Arbitrary Lagrangian Eulerian (ALE) formalism
dc.titleComparison of a fluid and a solid approach for the numerical simulation of friction stir welding with a non-cylindrical Pin
dc.typeConference report
dc.subject.lemacElements finits, Mètode dels
dc.rights.accessOpen Access
local.citation.contributorCOUPLED V
local.citation.publicationNameCOUPLED V : proceedings of the V International Conference on Computational Methods for Coupled Problems in Science and Engineering :

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