About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Dynamic Behavior of Materials X
|
Presentation Title |
Local Deformation and Recrystallization during High-velocity Impact of Metallic Particles |
Author(s) |
Chongxi Yuan, Marisol Koslowski |
On-Site Speaker (Planned) |
Chongxi Yuan |
Abstract Scope |
Understanding the mechanical response of high velocity impact is a crucial step to enhancing material design in many applications including supersonic aircrafts and understanding manufacturing processes like cold spray deposition. High velocity impact leads to a complex material response due to high strain rate conditions, localized deformation of the particle and the target, jetting, adhesion, heat generation, and recrystallization. We present finite elements simulations of aluminum particles impacting sapphire and aluminum substrate at velocities from 50m/s to 500m/s. The shape of the rebound sphere, the coefficient of restitution, and recrystallization are studied and compared to experiments. The simulations using classical finite deformation crystal plasticity are compared to a constitutive law developed using machine learning informed from atomistic simulations. |
Proceedings Inclusion? |
Planned: |
Keywords |
Modeling and Simulation, Aluminum, Machine Learning |