| About this Abstract |
| Meeting |
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
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| Symposium
|
2023 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2023)
|
| Presentation Title |
Experimental Characterization of the Mechanical Properties of 3D Printed Bézier-based Lattice Beams |
| Author(s) |
Alberto Álvarez-Trejo, Enrique Cuan-Urquizo, Armando Roman-Flores |
| On-Site Speaker (Planned) |
Alberto Álvarez-Trejo |
| Abstract Scope |
Architected materials are widely used in additive manufacturing for lightweighting. The controlled arrangement of material allows to tailor their mechanical properties by tuning their geometrical parameters. A parametrization based on cubic Bézier curves is employed here to generate lattice-beams by changing the position of a free control point. Two topologies with the same volume fraction and base curve at different positions are studied and compared. Lattice beams are manufactured via Fused Filament Fabrication (FFF) of polylactic acid (PLA). The effective Young's modulus and transverse shear of these lattice-beams is analyzed experimentally by means of three-point bending tests. The effect of shear deformation in the effective Young's modulus of the lattice structure is also evaluated by testing different beam lengths. The adjustment of the control point location leads to tailoring the effective mechanical properties of the lattice-beams. This methodology leads to the synthesis of architected topologies with customized mechanical properties. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |