About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
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| Symposium
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Enhancing Materials by Changing Surfaces and Interfaces: An EPD/FMD/LMD/SMD Symposium in Honor of Jaroslaw Drelich
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| Presentation Title |
Influence of Infill Percentage on the Mechanical Properties of Polymer Composites Printed by FFF |
| Author(s) |
Sarah Catharina Vitali de Melo, Sergio Neves Monteiro, Lucio Fabio Cassiano Nascimento |
| On-Site Speaker (Planned) |
Sarah Catharina Vitali de Melo |
| Abstract Scope |
Additive manufacturing via Fused Filament Fabrication (FFF) strongly depends on the quality of adhesion between paths and layers to ensure the mechanical performance of printed components. This study analyzed the influence of infill percentage on the tensile strength of polymer composites. Two sample groups were produced using identical printing parameters, varying only the infill rate: 25% and 65%. The results showed that higher infill led to better mechanical performance due to increased contact area between adjacent paths and more efficient load transfer across layers. In contrast, lower infill compromised interlayer adhesion due to the greater presence of voids within the material. Statistical analysis (ANOVA) confirmed a significant difference between the groups, and scanning electron microscopy (SEM) images complemented the results by revealing the failure regions. These findings highlight the importance of infill control in determining the final performance of FFF-printed components. |
| Proceedings Inclusion? |
Planned: |