基于四电极法的CFRP结构损伤检测研究

发布时间：2018-04-13 16:38

  本文选题：碳纤维复合材料 + 电阻抗检测　； 参考：《仪器仪表学报》2017年04期

【摘要】：碳纤维复合材料(CFRP)被广泛用于航空航天领域,实现其结构健康监测对提高适航审定的损伤容限探测水平、降低检测成本具有重要意义。针对飞机使用的CFRP层压结构材料,利用碳纤维的自传感特点及结构损伤的电学敏感特性,基于四电极法提出3种激励模式下的电阻抗无损检测方法,以实现非侵入、无辐射、低成本的快速无损结构健康监测。利用有限元分析软件COMSOL构建各向异性CFRP层压板模型,通过提取有效电压差与电压灵敏度参数,对比分析不同类型结构损伤检测效果,从而获取适用于CFRP层压板结构损伤检测的最优激励测量模式。综合实验结果表明,双电极激励模式整体表现较优。
[Abstract]:Carbon fiber reinforced polymer (CFRP) is widely used in aerospace field. It is important to realize structural health monitoring for improving damage tolerance detection level and reducing detection cost.Aiming at the CFRP laminated structure materials used in aircraft, based on the characteristics of autobiographical induction of carbon fiber and electrical sensitivity of structural damage, three non-destructive testing methods for electrical impedance under three excitation modes are proposed based on the four-electrode method to realize non-invasive and radiation-free.Low cost fast non-destructive structural health monitoring.The anisotropic CFRP laminate model was constructed by using the finite element analysis software COMSOL. By extracting the effective voltage difference and voltage sensitivity parameters, the damage detection results of different types of structures were compared and analyzed.The optimal excitation mode for damage detection of CFRP laminates is obtained.The experimental results show that the dual electrode excitation mode is better.
【作者单位】： 中国民航大学电子信息与自动化学院;天津市过程检测与控制重点实验室;
【基金】：国家自然科学基金(61301244,61401466) 天津市过程检测与控制重点实验室开放课题基金(TKLPMC-201614) 中央高校基金(3122016A010)项目资助
【分类号】：TB332;TQ342.742
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本文编号：1745328