Development and sensing performance study of a smart CFRP cable assembled by multi-group anchorage units

IF 4.5 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

International Journal of Smart and Nano Materials Pub Date : 2023-05-11 DOI:10.1080/19475411.2023.2211036

L. Shao, Huanyu Yang, J. Ou, Zhi Zhou

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Abstract

ABSTRACT Carbon fiber reinforced polymer (CFRP) can be applied for bridge cables due to its excellent properties. As the important load-bearing structural component, real-time force monitoring of the CFRP cable is required. This paper presents a new smart CFRP cable that combines the self-sensing rods with embedded sensors and the anchorage system using extrusion technology. By embedding optical fiber (OF) and coaxial cable Fabry-Perot interferometer (CCFPI) into CFRP rods respectively, two types of self-sensing rods (CFRP-OF rod and CFRP-CCFPI rod) were fabricated. A new anchorage unit using an extrusion process was proposed as a basic component of smart CFRP cables. Anchorage units holding a CFRP-OF rod and a CFRP-CCFPI rod were tested to obtain their sensing and mechanical properties. Three anchorage units were assembled to form a smart CFRP cable with self-sensing functionality. A verification test was carried out to confirm the capability of monitoring the cable force. The test results demonstrate that the smart CFRP cable composed of multiple anchorage units has good potential in bridge engineering. GRAPHICAL ABSTRACT

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多组锚固单元组合CFRP智能锚索的研制及传感性能研究

摘要碳纤维增强聚合物（CFRP）具有优良的性能，可应用于桥梁缆索。CFRP拉索作为一种重要的受力结构构件，需要对其进行实时受力监测。本文提出了一种新型的智能CFRP电缆，该电缆将自感杆与嵌入式传感器和采用挤压技术的锚固系统相结合。通过将光纤（OF）和同轴电缆法布里-珀罗干涉仪（CCFPI）分别嵌入CFRP棒中，制备了两种类型的自感测棒（CFRP-OF棒和CFRP-CFPI棒）。提出了一种采用挤压工艺的新型锚固单元，作为智能CFRP拉索的基本部件。测试了固定CFRP-OF杆和CFRP-CFPI杆的锚固单元，以获得其传感和机械性能。组装了三个锚固单元，形成具有自感功能的智能CFRP电缆。进行了验证测试，以确认监测索力的能力。试验结果表明，由多个锚固单元组成的智能碳纤维布拉索在桥梁工程中具有良好的应用潜力。图形摘要

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来源期刊

International Journal of Smart and Nano Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

6.30

自引率

5.10%

发文量

审稿时长

11 weeks

期刊介绍： The central aim of International Journal of Smart and Nano Materials is to publish original results, critical reviews, technical discussion, and book reviews related to this compelling research field: smart and nano materials, and their applications. The papers published in this journal will provide cutting edge information and instructive research guidance, encouraging more scientists to make their contribution to this dynamic research field.