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相关实验视频

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优化不同补丁参数的修复的CFRP层材的拉伸性能,使用基于替代品的模型.

Zhenhua Yin1, Haoying Wei1, Zhenyu Ma1

  • 1School of Mechatronics Engineering, Henan University of Science and Technology, Luoyang 471003, China.

Materials (Basel, Switzerland)
|November 27, 2025
PubMed
概括

这项研究使用非线性Lamb波来检测修复的碳纤维结构中的微损伤. 最佳的补丁设计最大限度地减少非线性系数,提高拉伸性能和捕捉修复效率.

关键词:
复合纤维板材的复合板材是CFRP的.非线性羊羔波浪是一种非线性羊羔波浪.优化的优化优化优化.补丁维修 补丁维修 补丁维修拉力损伤造成的损伤

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科学领域:

  • 材料科学 材料科学 材料科学
  • 非线性声学 非线性声学
  • 结构健康监测 结构健康监测

背景情况:

  • 碳纤维增强聚合物 (CFRP) 结构易受拉伸诱导的微损伤.
  • 补丁修复是恢复受损CFRP结构完整性的常见方法.
  • 评估补丁修复的有效性和检测潜在的微损伤对于结构安全至关重要.

研究的目的:

  • 采用基于Lamb波的非线性高探测来评估在补丁修复的CFRP结构中引力诱导的微损伤.
  • 优化外部维修设计参数,以最大限度地减少非线性系数并提高拉伸性能.
  • 研究补丁设计参数对非线性声响应和损坏检测的影响.

主要方法:

  • 在不同的拉力位移下进行非线性Lamb波传播分析.
  • 通过实验结果验证的有限元建模.
  • 基于补丁半径,厚度和旋转角度的二级和三级非线性系数的分析.
  • 拉丁式超立方体实验设计和多参数优化的分散近似.

主要成果:

  • 有限元素模型准确地预测了在修复的CFRP中非线性兰姆波浪行为.
  • 补丁设计参数显著影响非线性系数和损坏检测灵敏度.
  • 确定了最佳补丁参数,以提高拉力性能和修复效率.
  • 成功实现了补丁修复结构的多参数优化.

结论:

  • 非线性Lamb波高波检测在修复的CFRP中对微损伤的评估是有效的.
  • 优化补丁设计参数对于提高结构完整性和维修效率至关重要.
  • 该研究为工程应用提供了宝贵的参考资料,涉及补丁修复结构的多参数优化.