Evaluation of magnetic flux leakage signals on fatigue crack growth of mild steel
In engineering applications, analysis of crack growth life is useful in situations where an unexpected crack has been found in a component of a machine, vehicle, or structure. The objective of this research is to investigate the correlation curve of magnetic flux leakage, Hp(y) signals by evaluating...
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| Format: | Article |
| Language: | English |
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Universiti Malaysia Pahang Publishing
2015-12-01
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| Series: | Journal of Mechanical Engineering and Sciences |
| Subjects: | |
| Online Access: | http://jmes.ump.edu.my/images/Volume_9/18_Ahmad%20et%20al.pdf |
| _version_ | 1797719241836724224 |
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| author | M.I.M Ahmad A. Arifin S. Abdullah |
| author_facet | M.I.M Ahmad A. Arifin S. Abdullah |
| author_sort | M.I.M Ahmad |
| collection | DOAJ |
| description | In engineering applications, analysis of crack growth life is useful in situations where an unexpected crack has been found in a component of a machine, vehicle, or structure. The objective of this research is to investigate the correlation curve of magnetic flux leakage, Hp(y) signals by evaluating their critical value point with respect to step size. Moreover, the relation of fatigue crack growth rate, da/dN toward the stress intensity range, ΔK and Hp(y) in metal components is also discussed in this paper. The tension-tension fatigue test was conducted with the metal magnetic memory scanning device and crack opening displacement (COD) gauges in 10 Hz (testing frequency) by applying a load for 3.0-5.0 kN respectively. As a result, the correlation curve of Hp(y) was built with the R-Squared values in the range of 0.99 and one mathematical model has been developed for estimation analysis. The sigmoidal shape curve was plotted on the graph of da/dN versus ΔK and also with Hp(y). Thus, for validation, the linear relation is represented between ΔK and Hp(y) that present a good approach for magnetic parameter to be developed in the fatigue crack growth analysis. Therefore, the magnetic method has greater capability to analyze the fatigue crack propagation life in a real application. |
| first_indexed | 2024-03-12T09:01:57Z |
| format | Article |
| id | doaj.art-9ee9115d36cf46fb97d284e95f94541a |
| institution | Directory Open Access Journal |
| issn | 2289-4659 2231-8380 |
| language | English |
| last_indexed | 2024-03-12T09:01:57Z |
| publishDate | 2015-12-01 |
| publisher | Universiti Malaysia Pahang Publishing |
| record_format | Article |
| series | Journal of Mechanical Engineering and Sciences |
| spelling | doaj.art-9ee9115d36cf46fb97d284e95f94541a2023-09-02T15:35:06ZengUniversiti Malaysia Pahang PublishingJournal of Mechanical Engineering and Sciences2289-46592231-83802015-12-0191727173310.15282/jmes.9.2015.18.0166Evaluation of magnetic flux leakage signals on fatigue crack growth of mild steelM.I.M Ahmad0A. Arifin1 S. Abdullah 2Department of Mechanical and Materials Engineering, University Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, MalaysiaDepartment of Mechanical and Materials Engineering, University Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, MalaysiaDepartment of Mechanical and Materials Engineering, University Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, MalaysiaIn engineering applications, analysis of crack growth life is useful in situations where an unexpected crack has been found in a component of a machine, vehicle, or structure. The objective of this research is to investigate the correlation curve of magnetic flux leakage, Hp(y) signals by evaluating their critical value point with respect to step size. Moreover, the relation of fatigue crack growth rate, da/dN toward the stress intensity range, ΔK and Hp(y) in metal components is also discussed in this paper. The tension-tension fatigue test was conducted with the metal magnetic memory scanning device and crack opening displacement (COD) gauges in 10 Hz (testing frequency) by applying a load for 3.0-5.0 kN respectively. As a result, the correlation curve of Hp(y) was built with the R-Squared values in the range of 0.99 and one mathematical model has been developed for estimation analysis. The sigmoidal shape curve was plotted on the graph of da/dN versus ΔK and also with Hp(y). Thus, for validation, the linear relation is represented between ΔK and Hp(y) that present a good approach for magnetic parameter to be developed in the fatigue crack growth analysis. Therefore, the magnetic method has greater capability to analyze the fatigue crack propagation life in a real application.http://jmes.ump.edu.my/images/Volume_9/18_Ahmad%20et%20al.pdfFatigue testcrack growth lifemagnetic signalsstress intensity range |
| spellingShingle | M.I.M Ahmad A. Arifin S. Abdullah Evaluation of magnetic flux leakage signals on fatigue crack growth of mild steel Journal of Mechanical Engineering and Sciences Fatigue test crack growth life magnetic signals stress intensity range |
| title | Evaluation of magnetic flux leakage signals on fatigue crack growth of mild steel |
| title_full | Evaluation of magnetic flux leakage signals on fatigue crack growth of mild steel |
| title_fullStr | Evaluation of magnetic flux leakage signals on fatigue crack growth of mild steel |
| title_full_unstemmed | Evaluation of magnetic flux leakage signals on fatigue crack growth of mild steel |
| title_short | Evaluation of magnetic flux leakage signals on fatigue crack growth of mild steel |
| title_sort | evaluation of magnetic flux leakage signals on fatigue crack growth of mild steel |
| topic | Fatigue test crack growth life magnetic signals stress intensity range |
| url | http://jmes.ump.edu.my/images/Volume_9/18_Ahmad%20et%20al.pdf |
| work_keys_str_mv | AT mimahmad evaluationofmagneticfluxleakagesignalsonfatiguecrackgrowthofmildsteel AT aarifin evaluationofmagneticfluxleakagesignalsonfatiguecrackgrowthofmildsteel AT sabdullah evaluationofmagneticfluxleakagesignalsonfatiguecrackgrowthofmildsteel |