| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Solid Phase Processing Symposium
|
| Presentation Title |
Smoothed Particle Hydrodynamic Simulations of Solid-phase AA6061 Additive Friction Stir Depositions |
| Author(s) |
George Stubblefield, Kirk Fraser, B. J. Phillips, D. Z. Avery, N. Zhu, Luke Brewer, J. Brian Jordon, Paul G. Allison |
| On-Site Speaker (Planned) |
Paul G. Allison |
| Abstract Scope |
Additive Friction Stir-Deposition (AFS-Deposition) provides a rapid, flexible, and robust metal recycling option that may be applied to manufacture large-scale multi-material components and/or repair damaged structures (i.e. vehicles, armor systems, etc.). AFS-Deposition is a solid-phase process negating normal issues associated with fusion-based processes, such as porosity and hot cracking. Here, the first simulations of the process are presented, which are crucial to elucidate the thermomechanical processing during depositions. Computer simulations quickly reveal important information such as temperature gradients and grain morphology. However, due to the excessive deformation in the AFS-Deposition process, traditional finite element schemes are insufficient. In this work, a meshfree coupled thermomechanical approach is used to model the AFS-Deposition process. The meshfree method, Smoothed Particle Hydrodynamics (SPH), is used to discretize the set of continuum conservation equations. Simulation results from over-fed, optimal, and starved builds are compared to real-time temperature experimental data and X-ray residual stress data. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |