Scholarlink

<p>This study investigates the failure mechanisms of polymer composite material (PCM) samples repaired using an adhesive bonding technique. Structurally similar samples (SSS) were prepared to replicate typical damage scenarios, and the strength of the adhesive joint between the parent material and the repair region was evaluated through static uniaxial tensile testing. Digital image correlation (DIC) was employed to capture the deformation and fracture behaviour during testing, allowing for a detailed assessment of stress distribution and crack propagation. A finite element (FE) model of the repaired samples was developed to simulate the mechanical response under static loading conditions. The model was validated by comparing predicted ultimate loads and observed fracture patterns with experimental results, showing close agreement. The combined experimental and numerical approach provides a reliable framework for assessing the performance of adhesive repairs in PCM structures. The results demonstrate the potential of the proposed repair method for restoring structural integrity and ensuring safety in aircraft components made from polymer composite materials, particularly under static loading conditions.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Computational determination of the failure mechanisms of PCM samples with adhesive repair

  • 期刊论文

  • 发表日期：

    2026年3月24日

查看全文
  • S. S. Kovtunov,
  • N. O. Kononov,
  • R. D. Trifonov,
  • N. S. Kupriyanov,
  • M. Yu Soldatkin

摘要

This study investigates the failure mechanisms of polymer composite material (PCM) samples repaired using an adhesive bonding technique. Structurally similar samples (SSS) were prepared to replicate typical damage scenarios, and the strength of the adhesive joint between the parent material and the repair region was evaluated through static uniaxial tensile testing. Digital image correlation (DIC) was employed to capture the deformation and fracture behaviour during testing, allowing for a detailed assessment of stress distribution and crack propagation. A finite element (FE) model of the repaired samples was developed to simulate the mechanical response under static loading conditions. The model was validated by comparing predicted ultimate loads and observed fracture patterns with experimental results, showing close agreement. The combined experimental and numerical approach provides a reliable framework for assessing the performance of adhesive repairs in PCM structures. The results demonstrate the potential of the proposed repair method for restoring structural integrity and ensuring safety in aircraft components made from polymer composite materials, particularly under static loading conditions.