168600 20260211123813.0 doi 10.1080/15440478.2026.2619884 sideral 148010 ART-2026-148010 eng Martin-Compaired, Clara Luna Universidad de Zaragoza Mechanical Property Comparison of Hemp and Flax Fiber Reinforced Polylactic Acid versus Additive-Enhanced and Carbon Fiber Reinforced Polylactic Acid in Fused Deposition Modeling 2026 Fused deposition modeling (FDM) is a common additive manufacturing (AM) tech-nology. This study compares PLA reinforced with natural fibers (hemp, flax) tomodified PLAs: PLA Plus (additive-enhanced) and PLA CF (synthetic carbon-fiberreinforced). Mechanical behavior is assessed via tensile, compression, and impacttests, complemented by microscopy-based microstructural analysis to evaluate per-formance differences in detail experimentally. The findings of the study indicatethat, in impact and compression tests, PLA Plus offers the best performance, show-ing a 15.278 KJ/m2 in the average energy per surface for the impact test and, anelastic modulus of 1.69 GPa and yield stress of 85.7MPa, while PLA hemp exhibitedvalues that were either equal to or highly comparable to those obtained by PLA CF.In the tensile tests, the PLA CF shows the best results, the modulus value obtainedwas 6.69 GPa, exhibiting a modulus value that was 146.30% higher than that of thePLA hemp and 167.37% higher than that of the PLA flax. Finally, a thoroughexamination of the scanning electron microscopy (SEM) images revealed that theobserved properties could be attributed to a reduced number of bubbles anda higher proportion of reinforcement fibers when compared to the natural fibers(NF) filaments examined. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/EC/H2020/101079009/EU/SUSTainable industrial DESIGN of TEXtile structures for composites/SustDesignTex This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 101079009-SustDesignTex info:eu-repo/semantics/openAccess by-nc https://creativecommons.org/licenses/by-nc/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Lemmi, Tsegaye Miralbes, Ramon Universidad de Zaragoza (orcid)0000-0002-9702-9314 Ranz, David Universidad de Zaragoza (orcid)0000-0001-8451-660X 5002 305 Universidad de Zaragoza Dpto. Ingeniería Diseño Fabri. Área Expresión Gráfica en Ing. 23, 1 (2026), 2619884 [18 pp.] JOURNAL OF NATURAL FIBERS JOURNAL OF NATURAL FIBERS 1544-0478 12548896 http://zaguan.unizar.es/record/168600/files/texto_completo.pdf Versión publicada 1267265 http://zaguan.unizar.es/record/168600/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:168600 articulos driver 2026-02-11-10:28:01 ARTICLE