Assessing Head Check Crack Growth by Eddy-Current Testing

Managing head checks is a crucial task for an infrastructure manager as in case of deep cracks, rails can break and, thus, accidents might be the consequence. Many infrastructure managers use vehicle-mounted eddy-current testing for detecting cracks. This is sufficient for guaranteeing safe railway...

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Main Authors: Stefan Marschnig, Markus Loidolt, Dieter Knabl, Alwine Steinecker, Reinhard Popp
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Infrastructures
Subjects:
Online Access:https://www.mdpi.com/2412-3811/8/5/89
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author Stefan Marschnig
Markus Loidolt
Dieter Knabl
Alwine Steinecker
Reinhard Popp
author_facet Stefan Marschnig
Markus Loidolt
Dieter Knabl
Alwine Steinecker
Reinhard Popp
author_sort Stefan Marschnig
collection DOAJ
description Managing head checks is a crucial task for an infrastructure manager as in case of deep cracks, rails can break and, thus, accidents might be the consequence. Many infrastructure managers use vehicle-mounted eddy-current testing for detecting cracks. This is sufficient for guaranteeing safe railway operation in applying a reactive maintenance regime removing cracks of a pre-defined depth. Moving this towards a predictive maintenance regime is only possible through assessing the crack growth. Establishing a stable deterioration function needs a sound data basis including a proper re-positioning of the test results of consecutive testing campaigns. This paper presents the results achieved from analysing the eddy-current testing campaigns of 10 years on a main line of the Austrian railway network and calculating a crack growth function as regression to field data. While it is possible to derive stable functions, the testing frequency needs to be shortened in order to move further to predictive maintenance.
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spelling doaj.art-aed0f86d32764538b9dec45f94a825592023-11-18T01:48:28ZengMDPI AGInfrastructures2412-38112023-05-01858910.3390/infrastructures8050089Assessing Head Check Crack Growth by Eddy-Current TestingStefan Marschnig0Markus Loidolt1Dieter Knabl2Alwine Steinecker3Reinhard Popp4Institute of Railway Engineering and Transport Economy, Graz University of Technology, 8010 Graz, AustriaInstitute of Railway Engineering and Transport Economy, Graz University of Technology, 8010 Graz, AustriaInstitute of Railway Engineering and Transport Economy, Graz University of Technology, 8010 Graz, AustriaInstitute of Railway Engineering and Transport Economy, Graz University of Technology, 8010 Graz, AustriaÖBB-Infrastruktur AG, 1020 Vienna, AustriaManaging head checks is a crucial task for an infrastructure manager as in case of deep cracks, rails can break and, thus, accidents might be the consequence. Many infrastructure managers use vehicle-mounted eddy-current testing for detecting cracks. This is sufficient for guaranteeing safe railway operation in applying a reactive maintenance regime removing cracks of a pre-defined depth. Moving this towards a predictive maintenance regime is only possible through assessing the crack growth. Establishing a stable deterioration function needs a sound data basis including a proper re-positioning of the test results of consecutive testing campaigns. This paper presents the results achieved from analysing the eddy-current testing campaigns of 10 years on a main line of the Austrian railway network and calculating a crack growth function as regression to field data. While it is possible to derive stable functions, the testing frequency needs to be shortened in order to move further to predictive maintenance.https://www.mdpi.com/2412-3811/8/5/89railway infrastructuretrackrailsforecastinghead checkingRCF
spellingShingle Stefan Marschnig
Markus Loidolt
Dieter Knabl
Alwine Steinecker
Reinhard Popp
Assessing Head Check Crack Growth by Eddy-Current Testing
Infrastructures
railway infrastructure
track
rails
forecasting
head checking
RCF
title Assessing Head Check Crack Growth by Eddy-Current Testing
title_full Assessing Head Check Crack Growth by Eddy-Current Testing
title_fullStr Assessing Head Check Crack Growth by Eddy-Current Testing
title_full_unstemmed Assessing Head Check Crack Growth by Eddy-Current Testing
title_short Assessing Head Check Crack Growth by Eddy-Current Testing
title_sort assessing head check crack growth by eddy current testing
topic railway infrastructure
track
rails
forecasting
head checking
RCF
url https://www.mdpi.com/2412-3811/8/5/89
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