Study of concrete's behavior under 4-point bending load using Coda Wave Interferometry (CWI) analysis

Zhang, Y.; Abraham, Odile; Chapeleau, Xavier; Cottineau, Louis-Marie; Tournat, Vincent; Duff, Alain Le; Lascoup, Bertrand; Durand, Olivier

doi:10.1063/1.4789075

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…DFO sensors installed over the length of the structure can provide spatially distributed strain measurements and therefore direct damage detection and localization can be achieved [6]. On the other hand, CWI can detect subtle changes in heterogeneous materials like concrete [7,8]. This allows large structures to be monitored using a limited number of sensors.…”

Section: Introductionmentioning

confidence: 99%

Distributed Fiber Optics Sensing and Coda Wave Interferometry Techniques for Damage Monitoring in Concrete Structures

Bassil

Wang

Chapeleau

et al. 2019

Sensors

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The assessment of Coda Wave Interferometry (CWI) and Distributed Fiber Optics Sensing (DFOS) techniques for the detection of damages in a laboratory size reinforced concrete beam is presented in this paper. The sensitivity of these two novel techniques to micro cracks is discussed and compared to standard traditional sensors. Moreover, the capacity of a DFOS technique to localize cracks and quantify crack openings is also assessed. The results show that the implementation of CWI and DFOS techniques allow the detection of early subtle changes in reinforced concrete structures until crack formation. With their ability to quantify the crack opening, following early detection and localization, DFOS techniques can achieve more effective monitoring of reinforced concrete structures. Contrary to discrete sensors, CWI and DFOS techniques cover larger areas and thus provide more efficient infrastructures asset management and maintenance operations throughout the lifetime of the structure.

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Section: Introductionmentioning

confidence: 99%

Distributed Fiber Optics Sensing and Coda Wave Interferometry Techniques for Damage Monitoring in Concrete Structures

Bassil

Wang

Chapeleau

et al. 2019

Sensors

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“…[10][11][12][13][14] Recent publications report on methods to compensate for temperature effects on CWI measurements [15][16][17] and to measure nonlinear effects in the monitored material, 18,19 thus furthering the usefulness of diffuse field measurements in SHM applications.…”

Section: Introductionmentioning

confidence: 99%

Continuous wave measurements in a network of transducers for structural health monitoring of a large concrete floor slab

Fröjd

Ulriksen

2016

Structural Health Monitoring

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Local, superficial damage was detected and localized on an 8 3 2-m concrete floor slab using a structural health monitoring system. A total of 30 piezoelectric transducers, placed in a grid, transmitted and received continuous ultrasonic waves that were measured using a lock-in amplifier. Tomography was used to create images from the measured amplitude and phase of the continuous waves between all possible transducer pairs. The location of damage induced by impact hits was visible in the resulting images. The signals could easily be detected even between the most distant transducer pairs, indicating the possibility of monitoring even very large concrete structures.

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Amplitude and phase measurements of continuous diffuse fields for structural health monitoring of concrete structures

Fröjd

Ulriksen

2016

NDT & E International

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Study of concrete's behavior under 4-point bending load using Coda Wave Interferometry (CWI) analysis

Cited by 5 publications

References 3 publications

Distributed Fiber Optics Sensing and Coda Wave Interferometry Techniques for Damage Monitoring in Concrete Structures

Distributed Fiber Optics Sensing and Coda Wave Interferometry Techniques for Damage Monitoring in Concrete Structures

Continuous wave measurements in a network of transducers for structural health monitoring of a large concrete floor slab

Amplitude and phase measurements of continuous diffuse fields for structural health monitoring of concrete structures

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