Comparison of algorithms to quantify the damaged area in CFRP ultrasonic scans

Research output: Contribution to journalResearch articleContributedpeer-review


CFRP structures can be damaged in different ways during service. Therefore, the effect of a damage on the structural behaviour has to be considered during the design process. Often the damage size and shape are used to characterize damages. So a precise knowledge of the size and shape of damaged areas is essential. In the present study a comparison of five different algorithms determining the damaged area size and shape of a CFRP specimen ultrasonic C-scan is presented. The considered algorithms are a pixel count algorithm, a Convex Hull algorithm, a Support Vector Machine algorithm, a Snake algorithm and a combination of two of them. Their reliability, efficiency and robustness are tested and compared by applying the algorithms to real world ultrasonic C-scans and calculating the damage size and shape automatically.


Original languageEnglish
Article number111791
Number of pages11
JournalComposite structures
Issue number235
Publication statusPublished - 1 Mar 2020

External IDs

Scopus 85076764597



  • Non-destructive testing, Ultrasonics, Computational modelling, Carbon fiber reinforced polymers (CFRP), Impact damages

Library keywords