| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing Modeling, Simulation, and Machine Learning: Microstructure, Mechanics, and Process
|
| Presentation Title |
Open-source Numerical Simulations of Melt Pool Physics in Laser Powder Bed Fusion Processes |
| Author(s) |
Craig Weeks, Jonathan Malen, Satbir Singh |
| On-Site Speaker (Planned) |
Craig Weeks |
| Abstract Scope |
In metal additive manufacturing, information about the physics and properties inside of the melt pool can prove invaluable for predicting the microstructure, defects, and strength of a printed part. Experimental approaches alone cannot explain the underlying physical processes and require complementary models. Analytical models can only capture rudimentary heat conduction effects in the build medium. Numerical models can yield a much better understanding of the fluid advection and vaporization physics present inside the high temperature regions of the melt pool. Effective implementation of underlying physics into open-source numerical codes can enable simulations with greater physical accuracy. In this talk we will share progress on open-source multiphysics modeling of conduction, advection, and vaporization of laser powder bed fusion (LPBF) meltpools using the OpenFOAM platform. Model development and methodology will be explored along with ongoing validation by experiments. |