Effect of Marine Ageing on Endurance Limit of Jute Fiber Composite Laminates

In this work, the composites studied consist of a polyester resin matrix reinforced with 40% by mass of natural jute fibers arranged bidirectionally.Their elaboration was carried out by the contact molding method.The specimens obtained were then subjected to aging in natural seawater for different immersion times (90, 180, and 270 days).The evaluation of the mechanical properties was carried out through static bending tests, allowing to determine the breaking stress, subsequently used as a reference for the cyclic fatigue tests in three-point bending.The results obtained, analyzed using the linear Wöhler curve, highlighted a progressive decrease in the endurance limit of jute fiber reinforced polyester (JFRP) composites with the increase in marine aging time.This degradation of performance is mainly linked to the absorption of chloride and sodium ions, causing modifications in the chemical structure as well as an alteration in the composition of the material.

• seawater immersion
• fatigue limit
• cyclic fatigue
• three-point bending
• breaking stress
• chloride uptake
• natural fiber composites
• contact molding
• S-N curves

• Natural Fiber Reinforced Composites
• Mechanical Behavior of Composites
• Fiber-reinforced polymer composites
• seawater immersion
• fatigue limit
• cyclic fatigue
• three-point bending
• breaking stress
• chloride uptake
• natural fiber composites
• contact molding
• Polymers and Plastics
• Mechanics of Materials
• Mechanical Engineering
• Materials Science
• Engineering