20.500.12556/RUL-152123 Material extrusion 3D printing of biodegradable composites reinforced with continuous flax fibers Fabricating additively manufactured thermoplastic parts with increased load-bearing capacity using material extrusion, namely fused deposition modeling, requires the incorporation of continuous reinforcing fibers. In this study, composites of PLA matrix and continuous flax fibers were additively fabricated using a specially designed 3D printer with multiple deposition toolheads. Unidirectional tensile and flexural specimens with a component-like shape and a fiber volume fraction of up to 18% were fabricated. The mechanical properties were determined for four different composite and matrix layers arrangements. The tensile modulus of elasticity and strength values increased by 3.6 and 2.9 times, respectively, compared to the specimens without the reinforcing fibers. In contrast, the flexural modulus of elasticity improved by 2.4 times, while the flexural strength increased by 1.4 times. It was found that it is possible to influence the mechanical properties and the type of damage by changing the volume fraction of the fibers and the arrangement of the composite layers. fused deposition modeling FDM composites continuous flax fibers mechanical properties ciljno odlaganje materiala kompoziti neprikinjena lanena vlakna mehanske lastnosti true false true Angleški jezik Slovenski jezik Članek v reviji 2023-11-06 14:32:00 2023-11-06 14:32:03 2025-08-08 13:30:25 0000-00-00 00:00:00 2023 0 0 Str. 3610-3620 Vol. 27 Nov.-Dec. 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 62:531 2238-7854 10.1016/j.jmrt.2023.10.148 171005955 1-s2.0-S2238785423025978-main.pdf 1-s2.0-S2238785423025978-main.pdf 1 18F5F15CFFC5C1B38D1449C68738E896 f89427a8544dedee123ee54c8ea53af66b15d4b43ffebacbdb8925485f839d54 c81fa566-c5c4-11ee-8be4-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=180731 https://www.sciencedirect.com/science/article/pii/S2238785423025978 1 dfa1eb2f-7ca8-11ee-ba57-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=177405 Fakulteta za strojništvo Biotehniška fakulteta 0 0 0