A simple and robust moving mesh technique for the finite element simulation of Friction Stir Welding

摘要: The simulation of the Friction Stir Welding process is a complex problem which involves physical couplings between mechanics and heat transfer, very large deformations strain rates in stirring zone around pin. To avoid mesh distortions or computing time due to Arbitrary Lagrangian Eulerian technique usually proposed literature for finite element method, simple but robust moving numerical modeling FSW process. It based on formalism composed 2 parts: first one fixed second includes base material near tool moves with rotational solid motion corresponding tool's velocity. Therefore, there are no leads satisfying time. An example clearly evidences efficiency robustness 3D geometry tool.