| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Towards Large-scale Grain Growth Modeling in Powder Bed Fusion |
| Author(s) |
Michael Paleos, Albert To |
| On-Site Speaker (Planned) |
Michael Paleos |
| Abstract Scope |
Grain growth models in the context of additive manufacturing are dealing with both the inherent complexity of the process and the computational expense of thermal process simulations. Cellular automata models have been successful in approximating the true physics of melt pool solidification, but they are typically confined to relatively small spatial domains. Building on recent advances in powder bed fusion process and microstructure modeling, we propose an integration framework based on several computational schemes that can lead to accurate simulations on unprecedented scales. For that purpose, we leverage and properly combine both the recently developed matrix-free FEM-based PAMSIM process simulator and the open-source ExaCA software. Our work centers around efficiently capturing information about several thermal signatures that would then guide grain growth in a decoupled manner. This framework would enable the computational study of microstructure (and property) heterogeneity and of the effect of unconventional scanning strategies. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |