Automated Quality Characterization for Composites Using Hybrid Ultrasonic Imaging Techniques

Jiangtao Sun, Alvin Yung Boon Chong, Siamak Tavakoli, Guojin Feng, Jamil Kanfoud, Cem Selcuk, Tat Hean Gan

Research output: Contribution to journalArticle

Abstract

An enhanced technique using image processing has been developed for automated ultrasonic inspection of composite materials, such as glass/carbon-fibre-reinforced polymer (GFRP or CFRP), to ascertain their structural healthiness. The proposed technique is capable of identifying the abnormality features buried in the composite by image filtering and segmentation applied to ultrasonic C-Scan images. This work presents results performed on two composite samples with simulated delamination defects. A local gating scheme is applied to raw A-Scan data for improved contrast between defective and healthy regions in the produced C-Scan image. In this test campaign, different filtering and thresholding algorithms are evaluated and compared in terms of their effectiveness on defect identification. The accuracies of less than 3 mm and 1.11 mm were attained for the defect size and depth, respectively. The results demonstrates the applicability of the proposed technique for accurate defect localization and characterization of composite materials.

Original languageEnglish
Pages (from-to)205-230
Number of pages26
JournalResearch in Nondestructive Evaluation
Volume30
Issue number4
Early online date12 Apr 2018
DOIs
Publication statusPublished - 4 Jul 2019
Externally publishedYes

Fingerprint

Ultrasonic imaging
hybrid composites
imaging techniques
ultrasonics
Imaging techniques
Defects
composite materials
defects
Composite materials
Ultrasonics
carbon fiber reinforced plastics
Carbon fiber reinforced plastics
abnormalities
glass fibers
carbon fibers
Delamination
Glass fibers
Carbon fibers
image processing
inspection

Cite this

Sun, Jiangtao ; Chong, Alvin Yung Boon ; Tavakoli, Siamak ; Feng, Guojin ; Kanfoud, Jamil ; Selcuk, Cem ; Gan, Tat Hean. / Automated Quality Characterization for Composites Using Hybrid Ultrasonic Imaging Techniques. In: Research in Nondestructive Evaluation. 2019 ; Vol. 30, No. 4. pp. 205-230.
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Automated Quality Characterization for Composites Using Hybrid Ultrasonic Imaging Techniques. / Sun, Jiangtao; Chong, Alvin Yung Boon; Tavakoli, Siamak; Feng, Guojin; Kanfoud, Jamil; Selcuk, Cem; Gan, Tat Hean.

In: Research in Nondestructive Evaluation, Vol. 30, No. 4, 04.07.2019, p. 205-230.

Research output: Contribution to journalArticle

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