Ultrasound data for laboratory calibration of an analytical model to calculate crack depth on asphalt pavements. [PDF]
Data Brief, 2017 Franesqui MA +2 more
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Principles and Applications of Ultrasonic-Based Nondestructive Methods for Self-Healing in Cementitious Materials. [PDF]
Materials (Basel), 2017 Ahn E, Kim H, Sim SH, Shin SW, Shin M.
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Non-destructive evaluation of depth of surface cracks using ultrasonic frequency analysis. [PDF]
Sensors (Basel), 2014 Her SC, Lin ST.
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Surface-Wave Based Model for Estimation of Discontinuity Depth in Concrete. [PDF]
Sensors (Basel), 2018 Ahn E +5 more
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Full-Matrix Imaging in Fourier Domain towards Ultrasonic Inspection with Wide-Angle Oblique Incidence for Welded Structures. [PDF]
Sensors (Basel)Chen M, Xu X, Yang K, Wu H.
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Advancements in integrated robotic sensing: A European perspective. [PDF]
Open Res EurMineo C.
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A metrological approach to the time of flight diffraction method (ToFD)
Measurement: Journal of the International Measurement Confederation, 2021Abstract Introduction Non-Destructive Testing (NDT) is widely used in industry, especially in the evaluation of mechanical parts and structures for identifying defects, corrosion, flaws or imperfections. Time of flight diffraction (ToFD) is a method to assess discontinuities high within a workpiece or material, what is not easy to do with ...
André V Alvarenga, R P B Costa-Félix
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Shear-wave time of flight diffraction (S-TOFD) technique
NDT and E International, 2006Ultrasonic time of flight diffraction (TOFD) for sizing defects is based on the time of flight of the diffracted echo that is generated when a longitudinal wave is incident on a crack tip. This technique has the limitation during near-surface inspection due to signal superposition.
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An alternative Ultrasonic Time of Flight Diffraction (TOFD) method
NDT and E International, 2018Abstract In this work an alternative TOFD method is presented, capable to detect and size defects in the inspected material with good precision. It was shown that the diffraction used in this technique is the most relevant signal among the longitudinal backwall and the shear backwall echoes, compared to other TOFD methods.
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Inspection Using Shear Wave Time of Flight Diffraction (S-TOFD) Technique
AIP Conference Proceedings, 2006Ultrasonic Time of Flight Diffraction (TOFD) for sizing defects is based on the time of flight of the longitudinal diffracted echo(es) that is (arc) generated when a longitudinal wave is incident on a crack tip. TOFD technique so far has been commonly applied for the inspection of thick sections (>15 mm) and thickness below 5 mm from the scanning ...
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