About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
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Algorithm Development in Materials Science and Engineering
|
Presentation Title |
Multiscale Modeling to Investigate the Deformation and Bonding Mechanism during Joining of Multi-materials by High-velocity Riveting |
Author(s) |
Ayoub Soulami, Lei Li, Krishna Chaitanya Pitike, Benjamin J Schuessler, Kranthi Balusu, Sridhar Niverty, Vineet V Joshi |
On-Site Speaker (Planned) |
Lei Li |
Abstract Scope |
High-velocity riveting (HiVe) allows the joining of metal sheets through a mechanical interlocking and/or a metallurgical bond resulting from the high-speed impact with the rivet and the die. When using HiVe to join aluminum to aluminum or high-strength and lower-ductility 3rd Gen AHSS sheets, the rivet/die geometries are critical for obtaining a good joint without material fracture. This study proposes a multiscale modeling framework to help understand the HiVe joining mechanism and inform the rivet/die design. At the macro-scale, a finite element method (FEM) model is developed to simulate the process deformation history during the riveting process. At the atomistic scale, a molecular dynamics (MD) model is developed, with input from the FEM predictions, to investigate the metallurgical bonding. This multiscale framework is validated experimentally and then used for optimizing rivet/die design. It is shown that the HiVe joints with optimized rivet/die designs have superior properties compared to baseline cases. |
Proceedings Inclusion? |
Planned: |
Keywords |
Process Technology, Computational Materials Science & Engineering, Joining |