Details
| Original language | English |
|---|---|
| Article number | 3923 |
| Number of pages | 8 |
| Journal | Sensors |
| Volume | 18 |
| Issue number | 11 |
| Early online date | 14 Nov 2018 |
| Publication status | Published - Nov 2018 |
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.
Keywords
- Carbon concrete composite, Fibre Bragg grating, Optical frequency domain reflectometry, Strain measurement, Structural health monitoring
ASJC Scopus subject areas
- Chemistry(all)
- Analytical Chemistry
- Biochemistry, Genetics and Molecular Biology(all)
- Biochemistry
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
- Physics and Astronomy(all)
- Instrumentation
- Engineering(all)
- Electrical and Electronic Engineering
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In: Sensors, Vol. 18, No. 11, 3923, 11.2018.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Evaluating the Performance of Functionalized Carbon Structures with Integrated Optical Fiber Sensors under Practical Conditions
AU - Bremer, Kort
AU - Alwis, Lourdes S.M.
AU - Weigand, Frank
AU - Kuhne, Michael
AU - Zheng, Yulong
AU - Krüger, Marco
AU - Helbig, Reinhard
AU - Roth, Bernhard
N1 - Funding Information: Funding: This research was funded by the Bundesministerium fuer Bildung und Forschung (BMBF) within Grant Number 03ZZ0345 (Carbon Concrete Composite (C3)). Funding Information: Acknowledgments: The authors acknowledge support of M.-Barbara Schaller and Robby Scholz from the company Gesellschaft für Geomechanik und Baumesstechnik mbH (GGB).
PY - 2018/11
Y1 - 2018/11
N2 - 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.
AB - 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.
KW - Carbon concrete composite
KW - Fibre Bragg grating
KW - Optical frequency domain reflectometry
KW - Strain measurement
KW - Structural health monitoring
UR - http://www.scopus.com/inward/record.url?scp=85056621194&partnerID=8YFLogxK
U2 - 10.3390/s18113923
DO - 10.3390/s18113923
M3 - Article
C2 - 30441772
AN - SCOPUS:85056621194
VL - 18
JO - Sensors
JF - Sensors
SN - 1424-8220
IS - 11
M1 - 3923
ER -