使用 Buckypaper 传感器和 MXene 传感器对缝合修复复合结构进行结构健康监测,Polymer Composites

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使用 Buckypaper 传感器和 MXene 传感器对缝合修复复合结构进行结构健康监测
Polymer Composites ( IF 4.8 ) Pub Date : 2022-10-06 , DOI: 10.1002/pc.27097
Xiaoqiang Wang ₁ , Xiangrui Fan ₁ , Shaowei Lu ₂ , Lu Zhang ₁ , Xiaowei Jiang ₃ , Jian Lu ₁ , Bo Li ₁ , Chengkun Ma ₁ , Xingmin Liu ₂

Affiliation

随着复合材料在工业中的应用越来越广泛，复合材料损伤修复逐渐成为研究热点。在这篇文章中，传统的围巾修复层压板用碳纤维线缝合，以检查缝合对修复效率的影响。使用传统的Buckypaper传感器和新型MXene传感器对标本进行实时结构健康监测，并将结果与X射线监测结果进行对比。实验结果表明，缝合修复试件的断裂强度比传统围巾修复试件提高了21.2%。两种传感器都可以实时监测试件的载荷。随着力的传递，电阻变化率（

∆ R / R_{0}

) 的 Buckypaper 传感器变化高达 0.045，而

∆ R / R_{0}

MXene 传感器的变化幅度高达 0.7。传感器的电阻变化也可以反映损坏的开始。突然的变化

∆ R / R_{0}

在裂纹萌生阶段的样品上可以监测到 0.01。通过X射线无损检测方法，可以确认这两种传感器都适用于结构健康监测，并且MXene传感器的灵敏度要高得多。

"点击查看英文标题和摘要"

Structural health monitoring of stitch repaired composite structure with Buckypaper sensors and MXene sensors

With the increasing application of composite materials in the industry, the repair of damaged composite materials has gradually become a research focus. In this article, the traditional scarf repairing laminate was stitched with carbon fiber line to check the influence of stitch on repair efficiency. The traditional Buckypaper sensors and the novel MXene sensors were used to conduct real-time structural health monitoring of the specimen, and the results were compared with X-ray monitoring. The experimental results show that the breaking strength of the stitch repaired specimen is 21.2% higher than that of the traditional scarf repaired specimen. Both kinds of sensors can monitor the load of the specimen in real-time. As the force is transferred, the resistance change rate (

∆ R / R_{0}

) of the Buckypaper sensors varies by up to 0.045, while the

∆ R / R_{0}

of the MXene sensors varies by up to 0.7. The resistance change of the sensors can also reflect the initiation of damage. The sudden change in

∆ R / R_{0}

of 0.01 can be monitored on the specimen in the crack initiation stage. Through the X-ray nondestructive testing method, it can be confirmed that both kinds of sensors are suitable for structural health monitoring, and the sensitivity of the MXene sensors is much higher.

更新日期：2022-10-06

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