About this Abstract |
Meeting |
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Symposium
|
2022 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2022)
|
Presentation Title |
Mechanical Evaluation of Topology- and Toolpath-Optimized Composite Structures Manufactured via Multi-Axis Material Extrusion |
Author(s) |
Joseph R. Kubalak, Christopher B. Williams |
On-Site Speaker (Planned) |
Joseph R. Kubalak |
Abstract Scope |
Unlike conventional, gantry-based additive manufacturing (AM), multi-axis AM enables continuous variation of deposition path direction and tool orientation throughout the part. Material can be deposited outside of the XY-plane, enabling 3D tailoring of a composite material’s direction and placement to the part’s manufacturing and end-use requirements. This removes the relatively weak layer-interfaces from the load paths, applying more load to the fiber and increasing mechanical properties. To enable design and fabrication in this context, the authors have created the topology and toolpath optimization (TTO) workflow. TTO uses a topology and orientation optimization algorithm to determine 3D material distribution and orientation relative to input loading conditions, aligns material depositions (i.e., the composite reinforcement) to those orientations, and orders the deposition paths for collision-free fabrication to maximize part performance. In this presentation, multi-axis TTO parts are fabricated and mechanically evaluated relative to planar AM parts and demonstrate significant improvement in structural efficiency. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |