Defect Detection of Bolts through Machine Learning ofUltrasonic Testing Signals

The structural integrity of bolts in civil structures is critical to ensuring safety and operational efficiency. Traditional visual inspection methods often fail to detect internal defects of installed bolts, necessitating more advanced approaches. On the other hand, ultrasonic testing which c...

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Main Authors: Abdul Azziz Abd Talib, Chun Yee Lim, Chin Kian Liew
Format: Article
Language:deu
Published: NDT.net 2025-03-01
Series:e-Journal of Nondestructive Testing
Online Access:https://www.ndt.net/search/docs.php3?id=30801
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author Abdul Azziz Abd Talib
Chun Yee Lim
Chin Kian Liew
author_facet Abdul Azziz Abd Talib
Chun Yee Lim
Chin Kian Liew
author_sort Abdul Azziz Abd Talib
collection DOAJ
description The structural integrity of bolts in civil structures is critical to ensuring safety and operational efficiency. Traditional visual inspection methods often fail to detect internal defects of installed bolts, necessitating more advanced approaches. On the other hand, ultrasonic testing which can detect internal defects is not as straightforward to apply with signals difficult to analyse without the relevant certified non-destructive testing personnel qualifications and experience. This paper integrates machine learning to automate ultrasonic testing signal analysis in enhancing the reliability and precision of defect detection of bolts. A-scan signals were analysed to extract key features for machine learning models, with Gradient Boosting Classifier emerging as the optimal model, achieving an accuracy of 97% in defect classification. This methodology targets bolt defects such as thinning and corrosion, utilizing normalised signal features to distinguish severity of defects while enabling automated classification.
format Article
id doaj-art-05427d7289de45a09fbca35ed41576e5
institution Kabale University
issn 1435-4934
language deu
publishDate 2025-03-01
publisher NDT.net
record_format Article
series e-Journal of Nondestructive Testing
spelling doaj-art-05427d7289de45a09fbca35ed41576e52025-08-20T03:52:52ZdeuNDT.nete-Journal of Nondestructive Testing1435-49342025-03-0130310.58286/30801Defect Detection of Bolts through Machine Learning ofUltrasonic Testing SignalsAbdul Azziz Abd TalibChun Yee LimChin Kian Liew The structural integrity of bolts in civil structures is critical to ensuring safety and operational efficiency. Traditional visual inspection methods often fail to detect internal defects of installed bolts, necessitating more advanced approaches. On the other hand, ultrasonic testing which can detect internal defects is not as straightforward to apply with signals difficult to analyse without the relevant certified non-destructive testing personnel qualifications and experience. This paper integrates machine learning to automate ultrasonic testing signal analysis in enhancing the reliability and precision of defect detection of bolts. A-scan signals were analysed to extract key features for machine learning models, with Gradient Boosting Classifier emerging as the optimal model, achieving an accuracy of 97% in defect classification. This methodology targets bolt defects such as thinning and corrosion, utilizing normalised signal features to distinguish severity of defects while enabling automated classification. https://www.ndt.net/search/docs.php3?id=30801
spellingShingle Abdul Azziz Abd Talib
Chun Yee Lim
Chin Kian Liew
Defect Detection of Bolts through Machine Learning ofUltrasonic Testing Signals
e-Journal of Nondestructive Testing
title Defect Detection of Bolts through Machine Learning ofUltrasonic Testing Signals
title_full Defect Detection of Bolts through Machine Learning ofUltrasonic Testing Signals
title_fullStr Defect Detection of Bolts through Machine Learning ofUltrasonic Testing Signals
title_full_unstemmed Defect Detection of Bolts through Machine Learning ofUltrasonic Testing Signals
title_short Defect Detection of Bolts through Machine Learning ofUltrasonic Testing Signals
title_sort defect detection of bolts through machine learning ofultrasonic testing signals
url https://www.ndt.net/search/docs.php3?id=30801
work_keys_str_mv AT abdulazzizabdtalib defectdetectionofboltsthroughmachinelearningofultrasonictestingsignals
AT chunyeelim defectdetectionofboltsthroughmachinelearningofultrasonictestingsignals
AT chinkianliew defectdetectionofboltsthroughmachinelearningofultrasonictestingsignals