| About this Abstract |
| Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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| Symposium
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Applications
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| Presentation Title |
Apparent Mechanical Properties of Sinusoid-based Lattice Structure: Numerical Analysis and Experimental Validation |
| Author(s) |
Mariela Gomez-Castaneda, Enrique Cuan-Urquizo, Astrid Lorena Giraldo-Betancur, Juan Manuel Alvarado-Orozco |
| On-Site Speaker (Planned) |
Mariela Gomez-Castaneda |
| Abstract Scope |
Progress in additive manufacturing has benefited the fabrication of components with complex geometry, including those demanded in lattice materials or metamaterials. Here, computational simulations were carried out to investigate the deformation mechanisms, the apparent elastic moduli, and their relationship with the topology of two sinusoid-shaped structures. Tensile samples were fabricated with fused deposition modeling to validate the computations. Hence, a correlation between the topology´s parameters (amplitude-length and thickness-length ratios), relative density, the apparent stiffness and the apparent shear modulus is presented to contrast between structures with the same geometry-based design. We demonstrated high dependency of the mechanical properties upon topology´s parameters and the opportunity to achieve the same mechanical response with two different structures through relative density variation.
Finally, the observed deviations between experiments and simulations might be related to the samples´ microstructural differences derived from the manufacturing process but further research is needed for its understanding. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |