Structural Health Monitoring Using Textile Reinforcement Structures with Integrated Optical Fiber Sensors

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Bremer, Kort; Weigand, Frank; Zheng, Yulong; Alwis, Lourdes Shanika; Helbig, Reinhard; Roth, Bernhard: Structural Health Monitoring Using Textile Reinforcement Structures with Integrated Optical Fiber Sensors. In: Sensors 17 (2017), Nr. 2, 345. DOI: https://doi.org/10.3390/s17020345

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Sum total of downloads: 250




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Abstract: 
Optical fiber-based sensors "embedded" in functionalized carbon structures (FCSs) and textile net structures (TNSs) based on alkaline-resistant glass are introduced for the purpose of structural health monitoring (SHM) of concrete-based structures. The design aims to monitor common SHM parameters such as strain and cracks while at the same time acting as a structural strengthening mechanism. The sensor performances of the two systems are characterized in situ using Mach-Zehnder interferometric (MZI) and optical attenuation measurement techniques, respectively. For this purpose, different FCS samples were subjected to varying elongation using a tensile testing machine by carefully incrementing the applied force, and good correlation between the applied force and measured length change was observed. For crack detection, the functionalized TNSs were embedded into a concrete block which was then exposed to varying load using the three-point flexural test until destruction. Promising results were observed, identifying that the location of the crack can be determined using the conventional optical time domain reflectometry (OTDR) technique. The embedded sensors thus evaluated show the value of the dual achievement of the schemes proposed in obtaining strain/crack measurement while being utilized as strengthening agents as well.
License of this version: CC BY 4.0 Unported
Document Type: article
Publishing status: publishedVersion
Issue Date: 2017
Appears in Collections:Forschungszentren

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pos. country downloads
total perc.
1 image of flag of Germany Germany 207 82.80%
2 image of flag of China China 16 6.40%
3 image of flag of United States United States 8 3.20%
4 image of flag of India India 4 1.60%
5 image of flag of Netherlands Netherlands 2 0.80%
6 image of flag of Japan Japan 2 0.80%
7 image of flag of France France 2 0.80%
8 image of flag of No geo information available No geo information available 1 0.40%
9 image of flag of Russian Federation Russian Federation 1 0.40%
10 image of flag of Hungary Hungary 1 0.40%
    other countries 6 2.40%

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