About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
A DEM-FEM Coupling Method for Simulation of Vibratory Peening of Ti6Al4V |
| Author(s) |
Maxime Lombard, Maxime Paques, Benoit Changeux, Etienne Martin, Waris Nawaz Khan |
| On-Site Speaker (Planned) |
Maxime Lombard |
| Abstract Scope |
Vibratory peening (VP) is a new surface treatment process for metallic parts. It combines shot peening (SP) and vibratory finishing (VF) in a single process those providing parts with a surface layer of compressive residual stress (CRS) as well as a contained roughness. In this study, a coupled DEM-FEM simulation is proposed to predict in depth CRS profile. To account for media packing effects, a mass scaling based on impacts’ energy is assessed. The proposed simulation uses DEM to compute vibratory fluidized media dynamic. Impact’s energy and relative velocity are recorded and used as input for FEM. Media packing increase the effective mass of shot at impact, hence the shots’ affective masses are recomputed using collisions’ energies and velocities. Two models are studied, with and without effective mass calibration. Models’ accuracies are assessed with CRS profiles recovered from experimental trials. CRS’s depth, maximum values and surface’s values are compared. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Titanium, Surface Modification and Coatings, |