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<p>This study presents an integrated evaluation of the mechanical, fatigue, damping, and tribological properties of jute fiber-reinforced vinyl ester composites, aiming to develop eco-efficient materials for industrial tribological applications. Composite laminates were fabricated using the hand lay-up technique followed by compression molding, with varying jute fiber contents (10–30 wt.%). Standardized testing protocols were adopted to assess tensile and flexural strength, fatigue life under cyclic loading, dynamic mechanical damping capacity, dry sliding wear resistance, and surface hardness. The composite containing 25-wt.% jute fiber demonstrated the most balanced and superior performance, with a tensile strength of 45.8&#xa0;MPa, flexural strength of 76.6&#xa0;MPa, and fatigue life of 31,600 cycles. Additionally, it exhibited a maximum damping factor of 0.032 and the lowest wear rate of 0.055&#xa0;mg/m. Scanning electron microscopy (SEM) analysis confirmed strong fiber–matrix adhesion and effective fiber dispersion at this composition, contributing to improved load transfer and energy dissipation. Conversely, the 30-wt.% composite showed a slight decline in performance due to fiber agglomeration and poor resin infiltration. The results reveal a critical threshold for fiber content beyond which composite integrity is compromised. This comprehensive investigation highlights the suitability of 25-wt.% jute fiber–vinyl ester composites for components that require a combination of fatigue endurance, wear resistance, and vibration damping. The study establishes a scientific basis for optimizing natural fiber composites for use in structural and tribological parts of industrial machinery, contributing to the advancement of sustainable materials engineering.</p>

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Integrated Study on Fatigue, Wear, and Damping Behavior of Jute Fiber–Vinyl Ester Composites for Tribological Applications

  • 期刊论文

  • 发表日期：

    2025年10月13日

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  • Natrayan Lakshmaiya,
  • Sudhakar Reddy Kota,
  • Kiran Bhaskar,
  • M. Meikandan,
  • P. Vamsi Sagar,
  • Ramya Maranan

摘要

This study presents an integrated evaluation of the mechanical, fatigue, damping, and tribological properties of jute fiber-reinforced vinyl ester composites, aiming to develop eco-efficient materials for industrial tribological applications. Composite laminates were fabricated using the hand lay-up technique followed by compression molding, with varying jute fiber contents (10–30 wt.%). Standardized testing protocols were adopted to assess tensile and flexural strength, fatigue life under cyclic loading, dynamic mechanical damping capacity, dry sliding wear resistance, and surface hardness. The composite containing 25-wt.% jute fiber demonstrated the most balanced and superior performance, with a tensile strength of 45.8 MPa, flexural strength of 76.6 MPa, and fatigue life of 31,600 cycles. Additionally, it exhibited a maximum damping factor of 0.032 and the lowest wear rate of 0.055 mg/m. Scanning electron microscopy (SEM) analysis confirmed strong fiber–matrix adhesion and effective fiber dispersion at this composition, contributing to improved load transfer and energy dissipation. Conversely, the 30-wt.% composite showed a slight decline in performance due to fiber agglomeration and poor resin infiltration. The results reveal a critical threshold for fiber content beyond which composite integrity is compromised. This comprehensive investigation highlights the suitability of 25-wt.% jute fiber–vinyl ester composites for components that require a combination of fatigue endurance, wear resistance, and vibration damping. The study establishes a scientific basis for optimizing natural fiber composites for use in structural and tribological parts of industrial machinery, contributing to the advancement of sustainable materials engineering.