Defect detection in C-scan maps

Bozzi, E.; Cavaccini, Giovanni; Chimenti, M.; Bono, Maria Grazia Di; Salvetti, Ovidio

doi:10.1134/s105466180704013x

Cited by 2 publications

(1 citation statement)

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“…Various attempts can be found in the literature that are aimed at the application of image processing methods for aiding the analysis of ultrasonic scans. To the examples one can include the approaches employing wavelet transforms [3], feature extraction [4], fuzzy logic [5], data clustering [6], image segmentation based on statistical mean and standard devi-ation [7], or edge detection techniques [8]. Moreover, since interpretation of ultrasonic scans is sometimes di cult due to the presence of noise or the complexity of the structure geometry and the existence of embedded elements, their 3D visualisation could facilitate the diagnostic inference procedure.…”

Section: Damage Evaluation By Post-processing Of Ultrasonic Datamentioning

confidence: 99%

Damage evaluation based on ultrasonic testing of compos-ite aircraft elements and image analysis methods

Wronkowicz

Dragan

2018

MATEC Web Conf.

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Composite aircraft elements are inspected with the use of nondestructive testing methods to detect the damage appearance and monitor its progression. Ultrasonic testing is one of the most commonly applied methods owing to its capabilities of detecting various types of internal flaws and dam-age as well as evaluating their location and geometrical properties. There are several di culties in analysing the ultrasonic data, which cover the high time-consumption of such analyses resulting from large sizes of the scans and a man-ual handling of them. Thus, due to the possible occurrence of human errors, there is a necessity of increasing the e ciency of these inspections by aiding the analysis of the ultrasonic data. The paper presents proposed methods of the application of image analysis methods for supporting the procedures of the ul-trasonic evaluation of the aircraft structures. These cover facilitating the steps of damage detection, quantification as well as a three dimensional reconstruc-tion and visualisation. The proposed approaches are computationally e cient and may facilitate the data interpretation and damage evaluation procedures.

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Section: Damage Evaluation By Post-processing Of Ultrasonic Datamentioning

confidence: 99%