| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Metals:
ICME Gaps: Material Property and Validation Data to Support Certification
|
| Presentation Title |
Methods for Improved Part-scale Thermal Process Simulations in Laser Powder Bed Fusion |
| Author(s) |
Seth T. Strayer, Florian Dugast, Alaaeldin Olleak, Shawn Hinnebusch, Joshua Fody, Albert To |
| On-Site Speaker (Planned) |
Seth T. Strayer |
| Abstract Scope |
This talk presents methodologies for improving the fidelity and accuracy of part-scale thermal process simulations using the finite element (FE) method in laser powder bed fusion (LPBF) through novel numerical algorithms and data-driven approaches. First, the demand and feasibility of part-scale LPBF thermal process simulations are discussed. Second, we will address the limitations of using a pure conduction-based FE model to simulate the complex physical mechanisms occurring during LPBF. Several existing approaches to alleviate these issues, including matrix-free method with GPU computing, heat source optimization, and anisotropically enhanced thermal properties, will be presented. We will also explore avenues for improving such techniques, highlighting the need for accurate high-temperature material properties and the pivotal role of extensive calibration and validation data. |