2D size, position and shape definition of defects by B-scan image analysis

The non-destructive evaluation of defects by automatic procedures is of great importance for structural components. Thanks to the developments of the non-contact ultrasonic techniques, the automation of the inspections is gaining a progressively important role. In this work, an automatic inspection...

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Bibliographic Details
Published inFrattura ed integritá strutturale Vol. 9; no. 34; pp. 622 - 629
Main Authors Scafidi, Michele, Cerniglia, Donatella, Ingrassia, Tommaso
Format Journal Article
LanguageEnglish
Published Cassino Gruppo Italiano Frattura 01.10.2015
Subjects
2D defect shape definition
Automation
B-scan image analysis
Construction
Cross sections
defect size definition
Defective products
Defects
Inspection
laser UT system
NDE
Nondestructive testing
Panels
Scanning
Thickness measurement
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Summary:The non-destructive evaluation of defects by automatic procedures is of great importance for structural components. Thanks to the developments of the non-contact ultrasonic techniques, the automation of the inspections is gaining a progressively important role. In this work, an automatic inspection technique for the evaluation of defects by the analysis of B-scan images obtained by a laser ultrasonic system is presented. The data are extracted directly from a B-scan map obtained for a panel with internal defects, and are used to build an image of the cross section of the panel. The proposed automatic procedure allows the definition of size, position and shape of defects in panels of known thickness.
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ISSN:1971-8993
1971-8993
DOI:10.3221/IGF-ESIS.34.68