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Ramie-PLA Composite Hollow Sections for EV Chassis: Development and Static Bending Test

Mustasyar Perkasa , Tresna Priyana Soemardi , Djoko Wahyu Karmiadji , Yudan Whulanza , Arief Setyawan , Rizky Pratama Mulyana , Arga Agung Nugroho , Wahyu Sulistiyo , Masripah Masripah , Ridho Dwimansyah , Makmuri Makmuri , Wely Pasadena , Olivier Polit

Published
December 28, 2025

Vol. 8 No. 3 (2025)
Pages 716-725

DOI

Open Access
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Abstract

The increasing demand for sustainable and lightweight materials in the transportation sector, particularly in the context of electric vehicles (EVs), has accelerated the exploration of bio-based composites as viable alternatives to conventional structural materials. This study investigates the mechanical performance of hollow structural components fabricated from polylactic acid (PLA)-based composites reinforced with natural ramie fibers, targeting their application as chassis elements in urban electric vehicles. Emphasis is placed on replacing commercial steel hollow sections with environmentally benign alternatives that maintain mechanical integrity while offering additional functional benefits such as electrical non-conductivity. Three-point bending tests were conducted to evaluate the composite specimens' flexural strength, stiffness, and failure behavior to assess structural viability. This method was selected for its relevance to real-world bending stresses encountered in vehicular chassis components and suitability for consistent evaluation across beam-like geometries. Results demonstrate that the ramie-PLA bio-composite exhibits promising flexural performance, with sufficient bendability and stiffness for potential structural integration. Furthermore, the non-conductive nature of the composite presents a significant advantage for reducing electromagnetic interference with sensitive electronic systems common in EV platforms. The findings support the feasibility of deploying natural fiber-reinforced PLA composites as a sustainable, cost-effective solution for lightweight automotive structures, particularly in emerging markets where urban EV adoption is rapidly expanding.

Keywords

Ramie fiber; PLA Composite; Electric vehicle; Lightweight structure; Flexural strength; Three-point bending

References

  1. C. Wang, Z. Ren, S. Li, and X. Yi, “Effect of ramie fabric chemical treatments on the physical properties of thermoset polylactic acid (PLA) composites,†Aerospace, vol. 5, no. 3, pp. 1–12, 2018, doi: 10.3390/aerospace5030093.
  2. E. Hidayah, U. L. Jamilah, A. Rosyidah, and R. Idiawati, “Studi Modifikasi Permukaan Serat Rami untuk Meningkatkan Karakteristik Mekanik Biokomposit PLA Berpenguat Serat Rami,†SAINTIFIK@: Jurnal Pendidikan MIPA, vol. 9, no. 2, pp. 28–34, 2024, doi: 10.33387/saintifik.v9i2.9251.
  3. V. Giammaria, M. Capretti, G. Del Bianco, S. Boria, and C. Santulli, “Application of Poly(lactic Acid) Composites in the Automotive Sector: A Critical Review,†Polymers, vol. 16, no. 21, p. 3059, Oct. 2024, doi: 10.3390/polym16213059.
  4. A. K. Mohanty, M. Misra, and L. T. Drzal, Natural Fibers , Biopolymers , And Biocomposites. Boca Raton, FL, USA: CRC Press, 2005.
  5. M. Abednigo Jabu, A. AA, and N. NZ, “Application of Natural Fibre Composites in Interior Panels in the Automotive Industry: A Review,†International Journal of Engineering Trends and Technology, vol. 72, no. 3, pp. 91–98, Mar. 2024, doi: 10.14445/22315381/IJETT-V72I3P109.
  6. S. H. Kamarudin et al., “A Review on Natural Fiber Reinforced Polymer Composites (NFRPC) for Sustainable Industrial Applications,†Polymers, vol. 14, no. 17, p. 3698, Sep. 2022, doi: 10.3390/polym14173698.
  7. X. Y. Ang et al., “Evaluation of Automotive Bio-Composites Crash Box Performance,†International Journal of Automotive and Mechanical Engineering, vol. 20, no. 4, pp. 10943–10952, 2023, doi: 10.15282/ijame.20.4.2023.11.0846.
  8. T. P. Soemardi, O. Polit, F. Salsabila, and A. Lololau, “Ramie Fiber-Reinforced Polylactic-Acid Prepreg: Fabrication and Characterization of Unidirectional and Bidirectional Laminates,†International Journal of Technology, vol. 14, no. 4, pp. 888–897, 2023, doi: 10.14716/ijtech.v14i4.5940.
  9. A. Khouaja, A. Koubaa, and H. Ben Daly, “Study of the dielectric and chemical properties of cellulose bio-based composites,†Industrial Crops and Products, vol. 214, no. March, p. 118493, 2024, doi: 10.1016/j.indcrop.2024.118493.
  10. N. Mendes-Fonseca, M. Diab, J. Kang, and D. S. Wilkinson, “A comparative study on the bendability of a dual phase steel: three-point bend versus V-die test,†Journal of Materials Research and Technology, vol. 36, no. May, pp. 7603–7614, 2025, doi: 10.1016/j.jmrt.2025.05.007.
  11. G. Jeon, D. Ha, Y. Park, and C. Jeong, “Three-Point Bending Properties of Hybrid Multi-Materials Using Adhesive Bonding Dependent on Strength Difference between Steel and Aluminum,†Materials, vol. 15, no. 9, 2022, doi: 10.3390/ma15093328.
  12. M. Perkasa et al., “Composite Mechanics Simulation for Design of Lower Limb Prosthetic using Ramie Fiber-Reinforced Polylactic-Acid,†International Journal of Technology, vol. 16, no. 2, pp. 470–482, 2025, doi: 10.14716/ijtech.v16i2.7363.
  13. X. Zhang, H. Zhang, and Z. Wang, “Bending collapse of square tubes with variable thickness,†International Journal of Mechanical Sciences, vol. 106, pp. 107–116, Feb. 2016, doi: 10.1016/j.ijmecsci.2015.12.006.
  14. Y. Ko, K. Ahn, H. Huh, W. Choi, H. Jung, and T. Kwon, “Evaluation of Crash Energy Absorption Capacity of a Tearing Tube,†in Experimental and Applied Mechanics, Volume 6, New York: River Publishers, 2025, pp. 647–654. doi: 10.1007/978-1-4419-9792-0_93.
  15. İ. Öztürk, “Crashworthiness design of heat treated vehicle parts with tailored properties,†Materials Testing, vol. 64, no. 4, pp. 563–573, Apr. 2022, doi: 10.1515/mt-2022-2001.
  16. Y. Fu and X. Yao, “A review on manufacturing defects and their detection of fiber reinforced resin matrix composites,†Composites Part C: Open Access, vol. 8, no. May, p. 100276, 2022, doi: 10.1016/j.jcomc.2022.100276.
  17. M. J. Suriani, H. Z. Rapi, R. A. Ilyas, M. Petrů, and S. M. Sapuan, “Delamination and manufacturing defects in natural fiber-reinforced hybrid composite: A review,†Polymers, vol. 13, no. 8, pp. 1–24, 2021, doi: 10.3390/polym13081323.
  18. H. Li, F. Li, and L. Zhu, “Effect of Resin-Missing Defects on Tensile Behavior of Carbon Fiber/Epoxy Composites,†Polymers, vol. 16, no. 3, pp. 1–17, 2024, doi: 10.3390/polym16030348.
  19. T. Huang and M. Bobyr, “A Review of Delamination Damage of Composite Materials,†Journal of Composites Science, vol. 7, no. 468, 2023, doi: 10.3390/jcs7110468.
  20. S. Sridharan, Delamination Behaviour of Composites. 2008. doi: 10.1533/9781845694821.
  21. V. Rodríguez-García, J. Gómez, F. Cristiano, and M. R. Gude, “Industrial manufacturing and characterization of multiscale CFRP laminates made from prepregs containing graphene-related materials,†Materials Research Express, vol. 7, no. 7, 2020, doi: 10.1088/2053-1591/aba0eb.
  22. S. Kazano, T. Osada, S. Kobayashi, and K. Goto, “Experimental and analytical investigation on resin impregnation behavior in continuous carbon fiber reinforced thermoplastic polyimide composites,†Mechanics of Advanced Materials and Modern Processes, vol. 4, no. 1, 2018, doi: 10.1186/s40759-018-0039-3.
  23. K. Wang et al., “Effects of PLA-Type and Reinforcement Content on the Mechanical Behavior of Additively Manufactured Continuous Ramie Fiber-Filled Biocomposites,†Sustainability (Switzerland) , vol. 16, no. 7, 2024, doi: 10.3390/su16072635.
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Publication Information
Published December 28, 2025
Section Articles
Copyright Copyright (c) 2025 Mustasyar Perkasa, Tresna Priyana Soemardi, Djoko Wahyu Karmiadji, Yudan Whulanza, Arief Setyawan, Rizky Pratama Mulyana, Arga Agung Nugroho, Wahyu Sulistiyo, Masripah Masripah, Ridho Dwimansyah, Makmuri Makmuri, Wely Pasadena, Olivier Polit
Keywords
  • Ramie fiber
  • PLA Composite
  • Electric vehicle
  • Lightweight structure
  • Flexural strength
  • Three-point bending

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