| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XIII
|
| Presentation Title |
Computational Framework for the Accurate and Efficient Simulation of FSW Processes |
| Author(s) |
Michele Chiumenti, Henning Venghaus, Narges Dialami, Joan Baiges, Daniel Juhre |
| On-Site Speaker (Planned) |
Michele Chiumenti |
| Abstract Scope |
The numerical simulation of the FSW process is tackled by employing the Embedded Domain Method (EDM). The original pin-tool geometry is embedded into the regular (non-body-fitted) mesh used for the workpiece, avoiding continuous re-meshing operations due to the pin rotation. This computational framework accommodates complex threaded pin geometries, including non-zero tilt angles, without requiring user-defined mesh generation. An octree-type mesh refinement strategy is used to hierarchically reduce the mesh size at the tool/workpiece interface based on appropriate error estimation. The proposed framework is compared to the ALE kinematic framework in terms of solution efficiency and accuracy. Suitable constitutive equations for material characterization and an ad-hoc friction law are proposed. Stabilized mixed FE technology is adopted to manage the fully isochoric behavior during the material stirring process. A tracing technique is used to visualize the material flow and detect defects. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Joining, Process Technology |