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Crack monitoring on concrete structures with distributed fiber optic sensors—Toward automated data evaluation and assessment
https://orcid.org/0000-0002-3833-8424
https://orcid.org/0000-0002-2187-1652
https://orcid.org/0000-0001-8735-1345
AbstractThe ability to measure strains quasi‐continuously with high spatial resolution makes distributed fiber optic sensing a promising technology for structural health monitoring as it allows to locate and measure damages in concrete structures, such as cracks. Depending on whether the distributed fiber optic sensor (DFOS) is embedded into the concrete matrix or bonded to the reinforcement, different approaches for crack width calculation exist. The high spatial resolution of DFOS quickly leads to a large amount of data, especially with time continuous monitoring. Scalable, automated analysis approaches are required to handle such big data and to derive a gain in knowledge from the measurements. Thus, in a first step, the Python framework fosanalysis is presented and made available to other researchers or monitoring specialists as free software. The most important input parameters for crack width calculation are discussed for concrete strain and steel strain DFOS. Accurate crack monitoring for a 4 m long reinforced concrete beam is demonstrated by using fosanalysis. The calculated crack widths are in good agreement with digital image correlation measurements.
Crack monitoring on concrete structures with distributed fiber optic sensors—Toward automated data evaluation and assessment
https://orcid.org/0000-0002-3833-8424
https://orcid.org/0000-0002-2187-1652
https://orcid.org/0000-0001-8735-1345
AbstractThe ability to measure strains quasi‐continuously with high spatial resolution makes distributed fiber optic sensing a promising technology for structural health monitoring as it allows to locate and measure damages in concrete structures, such as cracks. Depending on whether the distributed fiber optic sensor (DFOS) is embedded into the concrete matrix or bonded to the reinforcement, different approaches for crack width calculation exist. The high spatial resolution of DFOS quickly leads to a large amount of data, especially with time continuous monitoring. Scalable, automated analysis approaches are required to handle such big data and to derive a gain in knowledge from the measurements. Thus, in a first step, the Python framework fosanalysis is presented and made available to other researchers or monitoring specialists as free software. The most important input parameters for crack width calculation are discussed for concrete strain and steel strain DFOS. Accurate crack monitoring for a 4 m long reinforced concrete beam is demonstrated by using fosanalysis. The calculated crack widths are in good agreement with digital image correlation measurements.
Crack monitoring on concrete structures with distributed fiber optic sensors—Toward automated data evaluation and assessment
https://orcid.org/0000-0002-3833-8424
https://orcid.org/0000-0002-2187-1652
https://orcid.org/0000-0001-8735-1345
AbstractThe ability to measure strains quasi‐continuously with high spatial resolution makes distributed fiber optic sensing a promising technology for structural health monitoring as it allows to locate and measure damages in concrete structures, such as cracks. Depending on whether the distributed fiber optic sensor (DFOS) is embedded into the concrete matrix or bonded to the reinforcement, different approaches for crack width calculation exist. The high spatial resolution of DFOS quickly leads to a large amount of data, especially with time continuous monitoring. Scalable, automated analysis approaches are required to handle such big data and to derive a gain in knowledge from the measurements. Thus, in a first step, the Python framework fosanalysis is presented and made available to other researchers or monitoring specialists as free software. The most important input parameters for crack width calculation are discussed for concrete strain and steel strain DFOS. Accurate crack monitoring for a 4 m long reinforced concrete beam is demonstrated by using fosanalysis. The calculated crack widths are in good agreement with digital image correlation measurements.
Crack monitoring on concrete structures with distributed fiber optic sensors—Toward automated data evaluation and assessment
Structural Concrete
Richter, Bertram (author) / Herbers, Max (author) / Marx, Steffen (author)
Structural Concrete ; 25 ; 1465-1480
2024-04-01
Article (Journal)
Electronic Resource
English
Crack Monitoring on Concrete Structures using Robust Distributed Fiber Optic Sensors
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