Laser ultrasonics for civil engineering : some applications in development for concrete non destructive testing

Abraham, Odile; Popovics, John S.; Cottineau, Louis Marie; Durand, Olivier

doi:10.1088/1742-6596/278/1/012014

Cited by 5 publications

(2 citation statements)

References 3 publications

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“…For the NDT of civil infrastructures, Abraham et al [ 86 ] presented two possible applications of in situ LUS: one was the detection of voids in tendon ducts by impact echo diagnosis imagery in the frequency range of 1–60 kHz, and the other was the characterization of the cover of concrete structures using surface waves (SW) in the frequency range of 50–200 kHz. EMATs, mentioned previously, could also be introduced to detect the laser-generated ultrasound, and they showed favorable sensitivity when compared with laser-based interferometric detection [ 87 ], particularly where in-plane displacement was measured.…”

Section: Multi-wave Phenomena and Imagingmentioning

confidence: 99%

Multi-Wave and Hybrid Imaging Techniques: A New Direction for Nondestructive Testing and Structural Health Monitoring

Cheng

Deng

Cao

et al. 2013

Sensors

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In this article, the state-of-the-art multi-wave and hybrid imaging techniques in the field of nondestructive evaluation and structural health monitoring were comprehensively reviewed. A new direction for assessment and health monitoring of various structures by capitalizing the advantages of those imaging methods was discussed. Although sharing similar system configurations, the imaging physics and principles of multi-wave phenomena and hybrid imaging methods are inherently different. After a brief introduction of nondestructive evaluation (NDE), structure health monitoring (SHM) and their related challenges, several recent advances that have significantly extended imaging methods from laboratory development into practical applications were summarized, followed by conclusions and discussion on future directions.

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Section: Multi-wave Phenomena and Imagingmentioning

confidence: 99%

Multi-Wave and Hybrid Imaging Techniques: A New Direction for Nondestructive Testing and Structural Health Monitoring

Cheng

Deng

Cao

et al. 2013

Sensors

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“…Such methods detect defects early and allow structures to be repaired before accidents occur. 1) The nondestructive hammering method is used to find large defects in concrete, and the noncontact infrared and electromagnetic reader methods are also used to detect defects in concrete. However, detecting cracks [2][3][4] is vital for identifying defects as early as possible because cracks become large defects.…”

Section: Introductionmentioning

confidence: 99%

Detection of crack in a shallow layer of mortar by using a harmonic component of very high intensity aerial ultrasonic waves

Osumi

Okitsu

Ito

2017

Jpn. J. Appl. Phys.

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We developed a noncontact, nondestructive method of imaging defects in solid objects with high-intensity aerial ultrasonic waves and optical equipment. The method detects defects in the imaged area by analyzing the velocity distribution on the surface of an object continuously irradiated with aerial ultrasonic waves. In this study, we attempted to detect a crack in a shallow layer of mortar. We used the nonlinearity of high-intensity sound waves and we imaged a rectangular defect imitating a crack (width: 1 mm) using harmonic components of the vibration velocity. Our method successfully imaged the rectangular defect, showing the possibility of its application to the detection of actual cracks.

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Localization of grouting faults in post tensioned concrete structures

Krause

2011

Non-Destructive Assessment of Concrete Structures: Reliability and Limits of Single and Combined Techniques

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Laser ultrasonics for civil engineering : some applications in development for concrete non destructive testing

Cited by 5 publications

References 3 publications

Multi-Wave and Hybrid Imaging Techniques: A New Direction for Nondestructive Testing and Structural Health Monitoring

Multi-Wave and Hybrid Imaging Techniques: A New Direction for Nondestructive Testing and Structural Health Monitoring

Detection of crack in a shallow layer of mortar by using a harmonic component of very high intensity aerial ultrasonic waves

Localization of grouting faults in post tensioned concrete structures

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