Khan, Md. T. I. and Rashid, A. A. and Hidaka, R. and Hattori, N. and Islam, Md. M. (2019) Fatigue crack analysis of ferrite material by acoustic emission technique. Journal of Mechanical Engineering and Sciences, 13 (2). pp. 5074-5089. ISSN 2289-4659
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Abstract
Among various methods of Non-destructive techniques (NDT), analysis using released acoustic emission (AE) waves due to crack propagation is very effective due to its dynamic monitoring features. In fragmentation theory for AE there are some proportional relationships among the AE parameters i.e. AE event, AE energy, area and volume of cracks etc., which are calculated from the released AE waves from the dynamic crack inside any material. The necessity of calculating the fractal dimension has been found in such relationships and the value is emphasized for determining the geometry of the irregularity in crack surface and crack volume. In this paper a novel approach for evaluating that value based on image processing by MATLAB is proposed. The images of the cracks during propagation are preserved and utilized to find out the fractal dimension for analyzing the crack propagation characteristics. The AE energy is also estimated from the received AE waves. The positioning of the sensors plays a great impact on this calculation. Finally, the theoretical proportionality relations of AE parameters are interpreted experimentally during crack propagation behavior in ferrite cast iron under fatigue loading.
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| Item Type: | Article (Commonwealth Reporting Category C) |
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| Refereed: | Yes |
| Item Status: | Live Archive |
| Additional Information: | Published version made available under the terms of the Creative Commons Attribution- Non-Commercial 4.0 International License. |
| Faculty/School / Institute/Centre: | Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 July 2013 -) |
| Faculty/School / Institute/Centre: | Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 July 2013 -) |
| Date Deposited: | 05 Jul 2019 04:54 |
| Last Modified: | 09 Jan 2020 05:52 |
| Uncontrolled Keywords: | acoustic emission; acoustic energy; ferrite material; fatigue loading; fractal dimension; image processing |
| Fields of Research : | 09 Engineering > 0912 Materials Engineering > 091207 Metals and Alloy Materials |
| Socio-Economic Objective: | B Economic Development > 86 Manufacturing > 8611 Basic Metal Products (incl. Smelting, Rolling, Drawing and Extruding) > 861103 Basic Iron and Steel Products |
| Identification Number or DOI: | doi:10.15282/jmes.13.2.2019.21.0418 |
| URI: | http://eprints.usq.edu.au/id/eprint/36724 |
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