| About this Abstract |
| Meeting |
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
| Symposium
|
2024 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2024)
|
| Presentation Title |
Toolpath Planning for Additively Manufactured Continuous-Fiber Reinforced Composties Designed by Topology Optimization |
| Author(s) |
Janet Wong, Emily D. Sanders, David W Rosen |
| On-Site Speaker (Planned) |
Janet Wong |
| Abstract Scope |
Fiber layout of continuous fiber-reinforced composites (CFRCs) designed with topology optimization is typically represented by a discrete vector field that must be translated into continuous toolpaths via a toolpath planning step. Toolpaths should align well with the optimized fiber layout and have equal spacing for optimal structural performance and manufacturability, respectively. We ensure equal toolpath spacing by adopting a projection-based toolpath planning method and promote smoothly-varying fiber orientation by using radial basis functions (RBFs) to describe the fiber angles. RBFs also eliminate the need for post-processing steps typically required to regulate the fiber orientations when using a projection-based method. Finally, we introduce a correlation factor that quantifies how well the toolpaths align to the fiber orientations and optimize parameters of the projection to maximize the correlation. We compare the structural performance and manufacturability of several CFRC designs, post-processed using the projection-based method, to those post-processed using other toolpath planning methods. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |