About this Abstract |
| Meeting |
2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
|
| Symposium
|
2025 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2025)
|
| Presentation Title |
Evaluating Critical Variables in Energy-Absorbing Truss Lattices Using Design of Experiments |
| Author(s) |
Aaron Finch, Charles Wade, Robert MacCurdy |
| On-Site Speaker (Planned) |
Aaron Finch |
| Abstract Scope |
Truss lattice structures are a promising area of research for their energy absorption capabilities. The vast design space made available to truss lattices through additive manufacturing enables performance above traditional foams. Simultaneously, this vast design space can be difficult to navigate with many intertwined design variables dictating the overall performance of the lattice. This talk introduces a systematic design-of-experiments methodology to efficiently explore critical variables such as unit cell geometry, volume fraction, unit cell size, and spatially varying geometric gradients. We analyzed these design choices across the feasible range and assessed their performance using dynamic-explicit Finite Element Analysis solver for a set of impact scenarios. Key design variable combinations were fabricated via FFF to validate simulation results. The lattices’ performance, in terms of impact efficiency, allows us to conduct a sensitivity analysis. Our results detail the relative importance of these design variables, guiding future optimization of energy absorbing lattices. |
| Proceedings Inclusion? |
Planned: Post-meeting proceedings |