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<p>This study employs finite element simulations to investigate the structural response of composite stiffened plates subjected to high-velocity impact. Variations include projectile velocity, material type, fiber orientation, and the number of composite layers. Numerical simulations were conducted using Finite Element Analysis (FEA) in ABAQUS/CAE. Validation was performed based on benchmark models and published studies. The scenarios investigated projectile velocities ranging from 200 to 1000 m/s, four different composite materials (T700GC/M21, Tenax HTS40 12K 300, GFRP, and IM7/8552), fiber orientations (0°, 90°, ±45°, ±60°), and layer configurations (3 to 6 layers). Simulation results indicate that an increase in projectile velocity leads to a lower residual velocity and higher energy absorption. Among the four materials evaluated, IM7/8552 exhibited the highest energy absorption capacity of 167.6 J. At the same time, GFRP absorbed the least at 58.4 J. Fiber orientations of ±45° and ±60° reduced residual velocities by 10–15% compared to 0° and 90° configurations. Additionally, increasing the number of layers from 3 to 6 resulted in a more than 300% improvement in absorbed energy, demonstrating the significant role of laminate thickness in enhancing impact resistance. This research contributes to the optimization of composite structures in marine applications by highlighting the critical influence of fiber orientation and the number of layers on impact resistance. It also demonstrates the effectiveness of FEA in simulating high-velocity impact phenomena on composite stiffened structures.</p>

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Failure assessment of the engineered composite stiffened plates with geometric variations under high velocity impact by nonlinear finite element approach

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年9月23日

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  • Wardiman Devany Rizky,
  • Aditya Rio Prabowo,
  • Jung Min Sohn,
  • Tuswan Tuswan,
  • Rahimuddin Rahimuddin,
  • Teguh Muttaqie,
  • Bambang Kusharjanta

摘要

This study employs finite element simulations to investigate the structural response of composite stiffened plates subjected to high-velocity impact. Variations include projectile velocity, material type, fiber orientation, and the number of composite layers. Numerical simulations were conducted using Finite Element Analysis (FEA) in ABAQUS/CAE. Validation was performed based on benchmark models and published studies. The scenarios investigated projectile velocities ranging from 200 to 1000 m/s, four different composite materials (T700GC/M21, Tenax HTS40 12K 300, GFRP, and IM7/8552), fiber orientations (0°, 90°, ±45°, ±60°), and layer configurations (3 to 6 layers). Simulation results indicate that an increase in projectile velocity leads to a lower residual velocity and higher energy absorption. Among the four materials evaluated, IM7/8552 exhibited the highest energy absorption capacity of 167.6 J. At the same time, GFRP absorbed the least at 58.4 J. Fiber orientations of ±45° and ±60° reduced residual velocities by 10–15% compared to 0° and 90° configurations. Additionally, increasing the number of layers from 3 to 6 resulted in a more than 300% improvement in absorbed energy, demonstrating the significant role of laminate thickness in enhancing impact resistance. This research contributes to the optimization of composite structures in marine applications by highlighting the critical influence of fiber orientation and the number of layers on impact resistance. It also demonstrates the effectiveness of FEA in simulating high-velocity impact phenomena on composite stiffened structures.