Nonlinear coda wave interferometry for the global evaluation of damage levels in complex solids

Zhang, Yuxiang; Tournat, Vincent; Abraham, Odile; Durand, Olivier; Letourneur, Stéphane; Duff, Alain Le; Lascoup, Bertrand

doi:10.1016/j.ultras.2016.09.015

Cited by 35 publications

(29 citation statements)

References 35 publications

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“…the relative variation in velocity θ and remnant decorrelation coefficient Kd, have been carried out for a wide range of EDZ contrasts with different EDZ areas. For low levels of localized material damage, the results are shown to be similar to our previous study [1] and consistent with experimental observations [22]. θ is found to be proportional to the EDZ contrast, i.e.…”

Section: Resultssupporting

confidence: 91%

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Nonlinear Coda Wave Interferometry: Sensitivity to wave-induced material property changes analyzed via numerical simulations in 2D

Chen

Pageot²,

Abraham³

et al. 2019

Ultrasonics

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Section: Resultssupporting

confidence: 91%

“…intact glass. Note that only negative values of E E Δ / edz mtx are considered here since softening is universally observed[26,[20][21][22]. Parametric studies have been established with the EDZ contrast change in the case without attenuation, i.e.…”

mentioning

confidence: 99%

Nonlinear Coda Wave Interferometry: Sensitivity to wave-induced material property changes analyzed via numerical simulations in 2D

Chen

Pageot²,

Abraham³

et al. 2019

Ultrasonics

Self Cite

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“…A new method, Coda Wave Interferomertry (CWI), using scattered waves to detect small changes in the medium, has been developed [16]. Existing studies have shown the high sensitivity of CWI to detect temperature change [17][18][19], stress variation [20,21] and damage [22,23] in small, laboratory size specimens. The CWI method has been also applied to large-scale specimens in outdoor environments [24] and successfully implemented on real structures [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Detection of Multiple Cracks in Four-Point Bending Tests Using the Coda Wave Interferometry Method

Wang

Chakraborty²,

Bassil³

et al. 2020

Sensors

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The enlargement of the cracks outside the permitted dimension is one of the main causes for the reduction of service life of Reinforced Concrete (RC) structures. Cracks can develop due to many causes such as dynamic or static load. When tensile stress exceeds the tensile strength of RC, cracks appear. Traditional techniques have limitations in early stage damage detection and localisation, especially on large-scale structures. The ultrasonic Coda Wave Interferometry (CWI) method using diffuse waves is one of the most promising methods to detect subtle changes in heterogeneous materials, such as concrete. In this paper, the assessment of the CWI method applied for multiple cracks opening detection on two specimens based on four-point bending test is presented. Both beams were monitored using a limited number of embedded Ultrasonic (US) transducers as well as other transducers and techniques (e.g., Digital Image Correlation (DIC), LVDT sensors, strain gauges, and Fiber Optics Sensor (FOS)). Results show that strain change and crack formation are successfully and efficiently detected by CWI method even earlier than by the other techniques. The CWI technique using embedded US transducers is undoubtedly a feasible, efficient, and promising method for long-term monitoring on real infrastructure.

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“…Measurements in terms of wave propagation in concrete, therefore ultrasound and acoustic emission analysis tests in general, are identified to be very sensitive to temperature variations. Due to the strong dependency of different wave regimes on the temperature (Zhang et al, 2016), the specimen for the experimental procedure of ultrasound correlation analysis is tempered at 20 °C for 72 hours before testing. A single load state is characterized by a specific, manually applied torque (Fig.…”

Section: Ultrasound Signal Correlation Analysismentioning

confidence: 99%

Non-destructive inspection and monitoring of fractures in concrete with self-healing properties

Malm¹,

Diewald²,

Pinkert³

2019

Sustainable Construction Materials and Technologies (SCMT)

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Studying the properties of self-healing concrete, non-destructive testing techniques are beneficial to monitor the opening of cracks under load as well as the activation and efficiency of healing agents. The localization of defects and activation of self-healing agents, e.g. capturing the breakage of the encapsulation, is realized by the acoustic emission analysis (AEA) during the mechanical loading of concrete beams. The rebind of crack flanks due to an adhesive self-healing agent is verified by AEA and ultrasonic time of flight (ToF) method. Several proof-of-concept experiments were performed for test samples with selectively initiated fractures. To enhance the durability of infrastructure constructions by predictive maintenance of heterogeneous, self-healing components, a further step in signal analysis must be taken to evaluate online monitoring results even for unpredicted initial micro-crack formation and selective healing. Ultrasound signal correlation analysis is discussed regarding damage detection as well as the verification of self-healing properties.

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Nonlinear coda wave interferometry for the global evaluation of damage levels in complex solids

Cited by 35 publications

References 35 publications

Nonlinear Coda Wave Interferometry: Sensitivity to wave-induced material property changes analyzed via numerical simulations in 2D

Nonlinear Coda Wave Interferometry: Sensitivity to wave-induced material property changes analyzed via numerical simulations in 2D

Detection of Multiple Cracks in Four-Point Bending Tests Using the Coda Wave Interferometry Method

Non-destructive inspection and monitoring of fractures in concrete with self-healing properties

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