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<p>This paper explores the mechanical properties of Polylactic Acid (PLA) composites reinforced with carbon fiber (CF) developed by Fused Deposition Modeling (FDM) technology, aiming to enhance the mechanical performance of PLA by incorporating varying percentages of carbon fiber. The study used PLA and carbon fiber with varying percentages (0%, 10%, and 20% by weight). The filament is prepared through twin-screw extrusion for uniform carbon fiber dispersion. Test specimens were prepared by varying parameters like speed, infill density and orientations. Tensile tests showed that pure PLA had a tensile strength of 36.5 N/mm<sup>2</sup> and Young’s modulus of 2148.3 N/mm<sup>2</sup>, while PLA + CF 20% had significantly higher tensile strength of 66.8 N/mm<sup>2</sup> and Young’s modulus of 3227.8 N/mm<sup>2</sup>. Flexural tests indicated pure PLA had a flexural strength of 48.5 N/mm<sup>2</sup>, with PLA + CF 20% reaching 69.8 N/mm<sup>2</sup>. Impact tests revealed pure PLA absorbed 0.21&#xa0;J, while PLA + CF 20% absorbed 2.00&#xa0;J.</p>

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Optimizing Mechanical Performance of Carbon Fiber-PLA Composites Developed by Fused Deposition Modeling

  • 期刊论文

  • 发表日期：

    2026年1月5日

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  • Srinivasan V R,
  • Haseebuddin M R,
  • Chethan S,
  • Balthilak A,
  • Vikram Kedambadi Vasu,
  • Praveena B A,
  • Hemaraju H R

摘要

This paper explores the mechanical properties of Polylactic Acid (PLA) composites reinforced with carbon fiber (CF) developed by Fused Deposition Modeling (FDM) technology, aiming to enhance the mechanical performance of PLA by incorporating varying percentages of carbon fiber. The study used PLA and carbon fiber with varying percentages (0%, 10%, and 20% by weight). The filament is prepared through twin-screw extrusion for uniform carbon fiber dispersion. Test specimens were prepared by varying parameters like speed, infill density and orientations. Tensile tests showed that pure PLA had a tensile strength of 36.5 N/mm2 and Young’s modulus of 2148.3 N/mm2, while PLA + CF 20% had significantly higher tensile strength of 66.8 N/mm2 and Young’s modulus of 3227.8 N/mm2. Flexural tests indicated pure PLA had a flexural strength of 48.5 N/mm2, with PLA + CF 20% reaching 69.8 N/mm2. Impact tests revealed pure PLA absorbed 0.21 J, while PLA + CF 20% absorbed 2.00 J.