Detection of uniaxial fatigue stress under magnetic flux leakage signals using Morlet wavelet
This paper demonstrates the application of continuous wavelet transform technique for magnetic flux leakage signal generated during a uniaxial fatigue test. This is a consideration as the magnetic signal is weak and susceptible to being influenced by an external magnetic field. The magnetic flux lea...
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| Format: | Article |
| Language: | English |
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Gruppo Italiano Frattura
2022-07-01
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| Series: | Fracture and Structural Integrity |
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| Online Access: | https://www.fracturae.com/index.php/fis/article/view/3474/3575 |
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| author | S.M. Firdaus A. Arifin S. Abdullah S.S.K. Singh N. Md Nor |
| author_facet | S.M. Firdaus A. Arifin S. Abdullah S.S.K. Singh N. Md Nor |
| author_sort | S.M. Firdaus |
| collection | DOAJ |
| description | This paper demonstrates the application of continuous wavelet transform technique for magnetic flux leakage signal generated during a uniaxial fatigue test. This is a consideration as the magnetic signal is weak and susceptible to being influenced by an external magnetic field. The magnetic flux leakage signal response of API steel grade X65 is determined using Metal Magnetic Memory under cyclic load conditions ranging from 50% to 85% of the UTS. To facilitate further signal analysis, the magnetic flux gradient, the dH(y)/dx signal were converted from a length base into time series in this study. Magnetic flux leakage readings indicated a maximum UTS load of 56.5 (A/m)/mm at 85%, where a higher load resulted in a higher reading and the signal contained Morlet wavelet coefficient energy of 1.02�106 �e2/Hz. As increasing percentages of UTS loads were applied, the signal analysis revealed an increasing linear trend in the dH(y)/dx and wavelet coefficient energy. The analysis revealed a strong correlation between the wavelet coefficient energy and the dH(y)/dx amplitude, as indicated by the coefficient of determination (R2) value of 0.8572. Hence, this technique can provide critical information about magnetic flux leakage signals that can be used to detect high stress concentration zones |
| format | Article |
| id | doaj-art-90b65875874042098cd61cb51e18d327 |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2022-07-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-90b65875874042098cd61cb51e18d3272025-01-03T00:38:47ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932022-07-01166125426510.3221/IGF-ESIS.61.1710.3221/IGF-ESIS.61.17Detection of uniaxial fatigue stress under magnetic flux leakage signals using Morlet waveletS.M. FirdausA. ArifinS. AbdullahS.S.K. SinghN. Md NorThis paper demonstrates the application of continuous wavelet transform technique for magnetic flux leakage signal generated during a uniaxial fatigue test. This is a consideration as the magnetic signal is weak and susceptible to being influenced by an external magnetic field. The magnetic flux leakage signal response of API steel grade X65 is determined using Metal Magnetic Memory under cyclic load conditions ranging from 50% to 85% of the UTS. To facilitate further signal analysis, the magnetic flux gradient, the dH(y)/dx signal were converted from a length base into time series in this study. Magnetic flux leakage readings indicated a maximum UTS load of 56.5 (A/m)/mm at 85%, where a higher load resulted in a higher reading and the signal contained Morlet wavelet coefficient energy of 1.02�106 �e2/Hz. As increasing percentages of UTS loads were applied, the signal analysis revealed an increasing linear trend in the dH(y)/dx and wavelet coefficient energy. The analysis revealed a strong correlation between the wavelet coefficient energy and the dH(y)/dx amplitude, as indicated by the coefficient of determination (R2) value of 0.8572. Hence, this technique can provide critical information about magnetic flux leakage signals that can be used to detect high stress concentration zoneshttps://www.fracturae.com/index.php/fis/article/view/3474/3575ferromagnetic steelmetal magnetic memorywavelet transformuniaxial fatigue stress |
| spellingShingle | S.M. Firdaus A. Arifin S. Abdullah S.S.K. Singh N. Md Nor Detection of uniaxial fatigue stress under magnetic flux leakage signals using Morlet wavelet Fracture and Structural Integrity ferromagnetic steel metal magnetic memory wavelet transform uniaxial fatigue stress |
| title | Detection of uniaxial fatigue stress under magnetic flux leakage signals using Morlet wavelet |
| title_full | Detection of uniaxial fatigue stress under magnetic flux leakage signals using Morlet wavelet |
| title_fullStr | Detection of uniaxial fatigue stress under magnetic flux leakage signals using Morlet wavelet |
| title_full_unstemmed | Detection of uniaxial fatigue stress under magnetic flux leakage signals using Morlet wavelet |
| title_short | Detection of uniaxial fatigue stress under magnetic flux leakage signals using Morlet wavelet |
| title_sort | detection of uniaxial fatigue stress under magnetic flux leakage signals using morlet wavelet |
| topic | ferromagnetic steel metal magnetic memory wavelet transform uniaxial fatigue stress |
| url | https://www.fracturae.com/index.php/fis/article/view/3474/3575 |
| work_keys_str_mv | AT smfirdaus detectionofuniaxialfatiguestressundermagneticfluxleakagesignalsusingmorletwavelet AT aarifin detectionofuniaxialfatiguestressundermagneticfluxleakagesignalsusingmorletwavelet AT sabdullah detectionofuniaxialfatiguestressundermagneticfluxleakagesignalsusingmorletwavelet AT ssksingh detectionofuniaxialfatiguestressundermagneticfluxleakagesignalsusingmorletwavelet AT nmdnor detectionofuniaxialfatiguestressundermagneticfluxleakagesignalsusingmorletwavelet |