| 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 |
Stop Building Naked Lattices! A (More Than) Modest Mechanical Property Improvement Strategy |
| Author(s) |
Joseph Bartolai, Joseph W Fisher, Christian Rivera, C. R. Hasbrouck, Simon W Miller |
| On-Site Speaker (Planned) |
Joseph Bartolai |
| Abstract Scope |
A combination of solid structure and lattice is shown to be stiffer and stronger than either lattice structure or solid structure in isolation. Boundary conditions are known to have a significant effect on the mechanical performance of lattice structures, which are said to have “a high strength-to-weight ratio.” Contemporary lattice structure design, evaluation, and testing efforts pattern lattice through a volume and/or attempt to reduce unit cell size of the lattice such that the lattice has its far field properties. Finite Element Analysis and quasi-static uniaxial compression experiments are used to evaluate six different specimen geometries of equal mass. Six replicates each of a solid column, a thin walled cylinder, a Schwarz D-surface equation-based lattice structure, and combinations of thin-walled cylinder supported by D-surface lattice specimens are tested. The lattice-supported cylinder is shown to have the highest stiffness and ultimate strength. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |