CANALES AGUILERA, DIEGO, Cueto, Elias , Feulvarch, Eric , Chinesta, Francisco
Si
KEY ENG MATER
Proceedings Paper
Científica
0.21
01/01/2014
000347481000066
Friction Stir Welding (FSW) is a welding technique more and more demanded in industry by its multiple advantages. Despite its wide use, its physical foundations and the effect of the process parameters have not been fully elucidated. Numerical simulations are a powerful tool to achieve a greater understanding in the physics of the problem. Although several approaches can be found in the literature for simulating FSW, all of them present different limitations that restrict their applicability in industrial applications. This paper presents a new solution strategy that combines a robust approximation method, based on natural neighborhood interpolation, with a solution separated representation making use of the Proper Generalized Decomposition (PGD), for creating a new 3D updated-Lagrangian strategy for addressing the 3D model while keeping a 2D computational complexity
FSW; Separated representation; PGD; NEM; Sibson interpolation