About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing Modeling, Simulation and Machine Learning
|
Presentation Title |
A Mixed Sharp and Diffusive Interface Approach for Multi-physics Modeling of Metal Additive Manufacturing |
Author(s) |
Jinhui Yan |
On-Site Speaker (Planned) |
Jinhui Yan |
Abstract Scope |
Existing metal additive AM models have difficulty handling the laser-metal interaction and associated boundary conditions that significantly influence part quality metrics, such as defect and surface roughness. This talk presents a sharp-diffusive interface computational method for simulating multiphysics processes in metal AM, focusing on better handling gas-metal interface, where metal AM physics mainly takes place. I will demonstrate how the developed model elucidates the fundamental metal AM physics (e.g., melt pool dynamics, keyhole instability, and powder spattering) and predicts critical part quality-related quantities. The proposed framework’s accuracy is assessed by thoroughly comparing the simulated results against experimental measurements from NIST and Argonne National Laboratory using in-situ high-speed, high-energy x-ray imaging. I will also report other important quantities experiments cannot measure to show the framework's predictive capability. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, ICME, Solidification |