First Steps towards Parametric Modeling of FSW Processes by Using Advanced Separated Representations: Numerical Techniques

摘要: Friction Stir Welding (FSW) is a welding technique the more and demanded in industry by its multiple advantages. Despite wide use, physical foundations effect of process parameters have not been fully elucidated. Numerical simulations are powerful tool to achieve greater understanding physics problem. Although several approaches can be found literature for simulating FSW, all them present different limitations that restrict their applicability industrial applications. This paper presents new solution strategy combines robust approximation method, based on natural neighborhood interpolation, with separated representation making use Proper Generalized Decomposition (PGD), creating 3D updated-Lagrangian addressing model while keeping 2D computational complexity