2021 Virtual Undergraduate Research Symposium
2021 Virtual Undergraduate Research Symposium
Multiphysics Simulation of Additive Manufacturing
Multiphysics Simulation of Additive Manufacturing
PROJECT NUMBER: 72 | AUTHOR: Beau Nannie, Metallurgical and Materials Engineering
MENTOR: Jonah Klemm-Toole, Metallurgical and Materials Engineering
ABSTRACT
Physical processes such as solidification in additive manufacturing (AM) occur too quickly and are too localized to directly measure cooling rates or temperature gradients. However, cooling rates and temperature gradients significantly affect how materials evolve in AM. Accordingly, sophisticated modeling and simulations must be used to estimate heat transfer conditions during the process. However, many of these simulation softwares are extremely complicated, especially when needing to account for all of the factors that change solidification times, thus a more in-depth study of the simulation software must be done.
PRESENTATION
AUTHOR BIOGRAPHY
Beau Nannie is a sophomore in Metallurgical and Materials Engineering and is doing research under graduate students and professors working with the Center for Advanced Non-Ferrous Structural Alloys (CANFSA). He worked on the simulation of additive manufacturing processes and hopes to be able to work on experimentation and simulation of additive manufacturing in the future.
Awesome work Beau!
Hi Beau! I thought your presentation was great and the poster was very well organized.
I had a question about the simulation software, specifically when it comes to the interaction between the molten pool interface with the solid material, which in this situation would also have elevated temperature and thus form new bonds more easily. Can, or does, the software accommodate for the liquid-solid interactions that take place between molten material and the solid? As in, is it able to effectively accommodate for cellular/columnar grain growth at the interface?
Hi Charles! I’m not an expert on the software, however I would imagine that it is either impossible to account for grain growth or would take many hours trying different combinations of physics engines in the software. The software is made with the intention for most solid-liquid interactions, however it does not cover microstructure.
This is a super cool project, and your results look quite promising. Do you think a similar simulation technique could be used to discover new additive manufacturing techniques/materials? Also, how did the results of your simulation compare to the results of other, similar simulations?