The utilization of distributed fiber optic sensing (DFOS) allows the assessment of strain and temperature distributions continuously along the installed sensing fiber and is widely used for testing of...
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A substantial number of geotechnical projects, including massive concrete structures, necessitate distributed crack monitoring, which can be accomplished through the implementation of fiber optic
Distributed Fiber Optic Sensors for Multiple Crack Monitoring in Reinforced Concrete Structures October 2019 DOI: 10.12783/shm2019/32133
Distributed fibre optical sensing (DFOS) is increasingly used in civil engineering research. For reinforced concrete structures, almost continuous information concerning the deformations of embedded
The utilization of distributed fiber optic sensing (DFOS) allows the assessment of strain and temperature distributions continuously along the installed sensing fiber and is widely used for
To the knowledge of the authors, this is the first example where distributed fibre optic sensors have been used to measure the strain profiles of
Abstract Distributed Optical Fiber Sensors (DOFS) are modern-day cutting-edge monitoring tools that are quickly acquiring relevance in the Structural Health Monitoring engineering.
This paper describes the qualification test, setup of a distributed fiber optic measurement system embedded in concrete of the EPR Flamanville 3. First analyzes show encouraging results but have
Three strain gauges were also used for comparison purposes. This beam was then loaded, producing expected equal levels of strain in each of the fibre segments for a more direct comparison of the
Therefore, the purpose of this effort is to bridge the gap between civil engineering and sensor engineering communities through an overview on the up
Distributed Fiber-Optic Strain Sensing of an Innovative Reinforced Concrete Beam–Column Connection May 2022 Sensors 22 (10):3957 DOI:
New research in the field of fibre optics delivered new mea- surement methods. First approaches based on Fibre Bragg gratings (FBG) still only provided discrete measurement values.
Abstract and Figures In this paper we report on advances made in the installation and use of distributed fiber optic sensors to monitor reinforced
This paper shows the path followed by a research team at UPC-BarcelonaTech in order to implement the technology of distributed strain sensing using fiber optical sensors to structural
potential damage to concrete or embedded reinforcement. Distributed fibre optic measurement technology is meant to determine the strain characteristic with the highest possible spatial resolution
Fibre optics, supplemented by conventional measuring technology, was able to detect elastic strain, crack formation and decisive shear cracks of the
Abstract and Figures Distributed fibre optic sensing (DFOS) presents several advantages over traditional point sensors, for measuring strain and
This study helps to advance the application of the smart DFOS for structural health monitoring and maintenance of concrete infrastructures.
Distributed fibre optic sensors integrated into concrete structures act like its nervous system, detecting localised cracks and damage and reporting anomalies at any location.
This study aims at evaluating the feasibility of strain measurement and crack detection in thin unbonded concrete pavement overlays with pulse prepump Brillouin optical time domain
The study employed modelling and experiments with FOS to measure deformations in various concrete samples. FOS, which are thin fibres with an optical cable inside, was used in the
Different DFOS sensors and installation techniques were tested within load tests of concrete beams as well as real-scale tunnel lining segments, where the installations were
This study develops a delamination detection system for smart ultra-high-performance concrete (UHPC) overlays using a fully-distributed fiber optic
In this paper, multiple methods for performing adequate post-processing of experimental data generated by DFOS (which are all implemented in FOS Evaluator) are presented and their
In this paper we present the use of distributed fibre optic sensor (DFOS) technology to measure the temperature and strain of reinforced concrete
Monitoring of cracks and crack growth rates is a crucial aspect of structural health monitoring for concrete infrastructure, and multiple manual and automatic monitoring techniques
Fiber optic sensors (FOSs) are ideally suited for monitoring strain in concrete structures due to their small size, low cost, ability to be embedded internally, and multiplexing capabilities. Several types of
This paper explores the performance of distributed optical fiber sensors based on Rayleigh backscattering for the monitoring of strains in