Evaluating the Performance of Functionalized Carbon Structures with Integrated Optical Fiber Sensors under Practical Conditions

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Bremer, K.; Alwis, L.S.M.; Weigand, F.; Kuhne, M.; Zheng, Y. et al.: Evaluating the Performance of Functionalized Carbon Structures with Integrated Optical Fiber Sensors under Practical Conditions. In: Sensors (Basel, Switzerland) 18 (2018), Nr. 11, 3923. DOI: https://doi.org/10.3390/s18113923

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Sum total of downloads: 89




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Abstract: 
An Optical Frequency Domain Reflectometry (OFDR) based fiber optic sensor scheme "embedded" in concrete for the purpose of structural health monitoring (SHM) of carbon concrete composites (C³) is presented. The design, while strengthening the concrete structure, also aims to monitor common SHM parameters such as strain and cracks. This was achieved by weaving the carbon fiber together with optical fiber, based on a specialized technique that uses an embroidery setup where both the carbon and optical fiber are woven on a water dissolvable polymer substrate. The performance of the sensing scheme was characterized in-situ utilizing the OFDR based technique and the results presented. The sensors embedded on a custom made concrete block were subjected to varying strain via a three point bending test to destruction and the results discussed. The intended dual-achievement of the scheme thus proposed in SHM and strengthening the C³ is demonstrated. The suitability of the OFDR scheme for C³ is combined with a fibre Bragg grating (FBG)-based approach, and discussed in detail.
License of this version: CC BY 4.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2018
Appears in Collections:Forschungszentren

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1 image of flag of Germany Germany 61 68.54%
2 image of flag of United States United States 14 15.73%
3 image of flag of China China 4 4.49%
4 image of flag of Hong Kong Hong Kong 3 3.37%
5 image of flag of No geo information available No geo information available 2 2.25%
6 image of flag of Taiwan Taiwan 1 1.12%
7 image of flag of Russian Federation Russian Federation 1 1.12%
8 image of flag of Netherlands Netherlands 1 1.12%
9 image of flag of India India 1 1.12%
10 image of flag of Anonymous Proxy Anonymous Proxy 1 1.12%

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