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<p>This study explores the dynamic mechanical behavior&#xa0;of hybrid bismaleimide composite laminates reinforced with basalt fiber and stainless-steel mesh. Nine hot compressed laminates were fabricated, incorporating varied proportions of antimony trioxide and sodium bicarbonate as fillers. Impact tests at velocities of 2, 3, and 4&#xa0;m/s were conducted to assess impact resistance, focusing on maximum deformation and energy absorption. Findings indicate that filler addition significantly improves the composite’s ability to dissipate energy. The L5 laminate (4% Antimony Trioxide &amp; 4% Sodium Bicarbonate) demonstrated optimal performance, achieving 7.48&#xa0;J energy absorption with a moderate peak force reduction (3.105 kN). Laminates with either no fillers (L1) or excessive filler content (L7: 8% Sb<sub>2</sub>O<sub>3</sub>&#xa0;&amp; 8% NaHCO<sub>3</sub>) exhibited higher deformation and lower energy absorption.&#xa0;These advanced composites can be integrated into naval hulls, bulkheads or underwater protective layers to enhance impact resistance against underwater explosions and ballistic threats.</p> Graphical abstract <p></p>

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Evaluating hybrid basalt and stainless-steel wire mesh laminated composites under low impact velocity tests for naval applications

  • 期刊论文

  • 发表日期：

    2025年7月16日

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  • G. Ashwin Prabhu,
  • R. Selvam,
  • K. M. Kumar

摘要

This study explores the dynamic mechanical behavior of hybrid bismaleimide composite laminates reinforced with basalt fiber and stainless-steel mesh. Nine hot compressed laminates were fabricated, incorporating varied proportions of antimony trioxide and sodium bicarbonate as fillers. Impact tests at velocities of 2, 3, and 4 m/s were conducted to assess impact resistance, focusing on maximum deformation and energy absorption. Findings indicate that filler addition significantly improves the composite’s ability to dissipate energy. The L5 laminate (4% Antimony Trioxide & 4% Sodium Bicarbonate) demonstrated optimal performance, achieving 7.48 J energy absorption with a moderate peak force reduction (3.105 kN). Laminates with either no fillers (L1) or excessive filler content (L7: 8% Sb2O3 & 8% NaHCO3) exhibited higher deformation and lower energy absorption. These advanced composites can be integrated into naval hulls, bulkheads or underwater protective layers to enhance impact resistance against underwater explosions and ballistic threats.

Graphical abstract