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<p>Composites derived from natural fibers are increasingly mandated for various applications due to escalating regulatory pressures and environmental considerations. Composites composed of natural fibers are increasingly favored due to their numerous advantageous mechanical properties, including low weight, high specific strength, and stiffness. They are ideal for efficient and eco-friendly Engineering applications because of their superior vibration-damping and thermal-insulation properties, along with minimal environmental effect. This study examines the characteristics of epoxy composites reinforced with pineapple leaf fiber and a hybrid of pineapple leaf fiber (PALF) and Kadamba bark fiber (KBF). Pineapple leaf and Kadamba bark fibers were employed in the hand layup technique, utilizing epoxy adhesive to fabricate the laminates. Alongside density measurement, water absorption testing, impact testing, and Fast Fourier Transform (FFT) analysis, the produced samples underwent a series of static and dynamic tests. The hybrid composite of pineapple leaf fiber with Kadamba bark fiber demonstrates superior vibration control, impact resistance, and diminished moisture absorption, among other dynamic and static characteristics. The hybrid composite can withstand higher impact forces (3s.75&#xa0;N) and absorb increased energy (11.19&#xa0;J) owing to its density. A hybrid composite is better suitable for applications that are susceptible to impacts and sensitive to moisture because to these characteristics.</p>

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Experimental assessment of density, moisture absorption, impact strength, and vibration damping in PALF/KBF hybrid epoxy composites

  • 期刊论文

  • 发表日期：

    2026年5月1日

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  • V Y Ganvir,
  • G Rakesh,
  • D Selvapandian,
  • D Jeyasimman,
  • Jabril Khamaj,
  • P Satishkumar,
  • V Jeevananthan

摘要

Composites derived from natural fibers are increasingly mandated for various applications due to escalating regulatory pressures and environmental considerations. Composites composed of natural fibers are increasingly favored due to their numerous advantageous mechanical properties, including low weight, high specific strength, and stiffness. They are ideal for efficient and eco-friendly Engineering applications because of their superior vibration-damping and thermal-insulation properties, along with minimal environmental effect. This study examines the characteristics of epoxy composites reinforced with pineapple leaf fiber and a hybrid of pineapple leaf fiber (PALF) and Kadamba bark fiber (KBF). Pineapple leaf and Kadamba bark fibers were employed in the hand layup technique, utilizing epoxy adhesive to fabricate the laminates. Alongside density measurement, water absorption testing, impact testing, and Fast Fourier Transform (FFT) analysis, the produced samples underwent a series of static and dynamic tests. The hybrid composite of pineapple leaf fiber with Kadamba bark fiber demonstrates superior vibration control, impact resistance, and diminished moisture absorption, among other dynamic and static characteristics. The hybrid composite can withstand higher impact forces (3s.75 N) and absorb increased energy (11.19 J) owing to its density. A hybrid composite is better suitable for applications that are susceptible to impacts and sensitive to moisture because to these characteristics.