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Understanding composite laminate response under low-velocity impact is crucial for reliable composite design. However, limited research has comprehensively examined the impact energy threshold for damage initiation due to the complex behavior and high experimental costs. This study addresses this gap by investigating the influence of low-velocity impact energy (5, 10, 15 J) on composite laminates. A three-dimensional (3D) damage model employing a cohesive element approach was developed. The model simulates the structural response and failure of the laminate, incorporating puck failure criteria to identify and quantify intralaminar and delamination damage initiation. Implemented in Abaqus/Explicit using a user defined VUMAT subroutine, the model's predictions were validated against experimental data for three impact energies. The simulation results successfully predicted failure behavior for all configurations in which the discrepancies between predicted and experimental values around 10%. This work offers valuable insights for designing composites with enhanced impact resistance.

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Structural Response Prediction of Carbon-Fiber Reinforced Polymer Composite Laminate on Low-Velocity Impact Event

  • 会议论文

  • 发表日期：

    2025年

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  • Mohd Suhairil Meon,
  • Nur Hana Mazlan,
  • Jamaluddin Mahmud

摘要

Understanding composite laminate response under low-velocity impact is crucial for reliable composite design. However, limited research has comprehensively examined the impact energy threshold for damage initiation due to the complex behavior and high experimental costs. This study addresses this gap by investigating the influence of low-velocity impact energy (5, 10, 15 J) on composite laminates. A three-dimensional (3D) damage model employing a cohesive element approach was developed. The model simulates the structural response and failure of the laminate, incorporating puck failure criteria to identify and quantify intralaminar and delamination damage initiation. Implemented in Abaqus/Explicit using a user defined VUMAT subroutine, the model's predictions were validated against experimental data for three impact energies. The simulation results successfully predicted failure behavior for all configurations in which the discrepancies between predicted and experimental values around 10%. This work offers valuable insights for designing composites with enhanced impact resistance.