| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Friction Stir Welding and Processing XII
|
| Presentation Title |
A Coupled SPH-FEM Framework to Predict Residual Stresses during Friction Stir Processing |
| Author(s) |
Ayoub Soulami, Lei Li, Kranthi Balusu, Choi Kyoo Sil |
| On-Site Speaker (Planned) |
Kranthi Balusu |
| Abstract Scope |
Residual stresses are often generated during processing methods such as Friction Stir Processing (FSP) and can lead to undesirable dimensional instabilities. A coupled smoothed particle hydrodynamics (SPH) – finite element method (FEM) framework is proposed to predict residual stresses during FSP. The meshfree SPH model is first developed to accurately capture the material deformation, temperature evolution, and steady-state heat generation rates in FSP accounting for actual processing conditions and complex tool geometry. Heat generation rates from SPH are then used as an input to a FEM-based residual stress model to predict the temperature evolution and residual stresses in the workpiece. The predicted temperature fields and residual stresses are compared with experimental measurements for several processing conditions. The proposed modeling approach retains the accuracy of the SPH method while significantly reducing the computational time. A parametric study on the impact of processing conditions on the residual stresses is presented and discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Computational Materials Science & Engineering, Joining, Aluminum |