Distributed fiber optic sensors for measuring strains of concrete, steel, and textile reinforcement: Possible fields of application
Distributed fiber optic sensors for measuring strains of concrete, steel, and textile reinforcement: Possible fields of application
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用于测量混凝土、钢材和织物钢筋应变的分布式光纤传感器：可能的应用领域
DOI：
10.1002/suco.202100689
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发表时间：
2022
影响因子：
3.2
通讯作者：
Beckmann
中科院分区：
文献类型：
--
作者：
Zdanowicz;Gebauer;Koschemann;Steinbock;Beckmann
本文介绍了分布式光纤传感器（DFOS）的混凝土，钢筋和纺织钢筋应变的测量。分布式应变测量技术目前在土木工程领域获得越来越多的关注，实际上DFOS可以应用于各种测量场景，提供以前不可能的结果和见解。在本文中，比较了最常用的纤维和粘合剂，并描述了几种测量方案及其结果，包括高分辨率的精确应变测量以及大尺寸试样的测量。混凝土应变测量在多轴压缩应力状态下，也在设置和硬化，并在弯曲试验。钢和织物加固的应变被监测沿着粘结区，并在弯曲试验。最后，裂纹模式进行了观察和比较与数字图像相关方法。DFOS在实验室工作中的应用验证的例子进行说明。
The article describes measurements of strains of concrete, steel and textile reinforcement with distributed fiber optic sensors (DFOS). The technology of distributed strain measurements gains currently increasing attention within the civil engineering field and indeed the DFOS can be applied in various measurement scenarios providing results and insights which were not possible before. Within this article, the fibers and adhesives that are most commonly used are compared and several measurement scenarios and their results are described, including precise strain measurements with high resolution as well as measurements on large‐scale specimens. Concrete strains were measured in a multiaxial compression stress state and also during setting and hardening and in flexural tests. Strains of the steel and textile reinforcement were monitored along the bond zone and also in flexural tests. Finally, cracking patterns were observed and compared with digital image correlation methods. Validated examples of applications of DFOS in laboratory work are described.
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DOI：
--
发表时间：
2011
期刊：
影响因子：
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