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Fatigue life assessment of aluminium alloy 6061 specimen using signal analysis approach for automotive components

Azmir, N. A. and Abdullah, S. and Mohd Padzi, M. (2012) Fatigue life assessment of aluminium alloy 6061 specimen using signal analysis approach for automotive components. Applied Mechanics and Materials , 165 (2012). pp. 26-30. ISSN 1660-9336 (Unpublished)


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This paper is aimed to investigate the fatigue assessment of aluminium alloy 606lspecimen, one of the widely used aluminium alloys in the production of mechanical components. The alloy possesses the ability of critical failure caused by fatigue when they are subjected to dynamic responses in automotive-type components. The specimens were prepared according to the ASTM E606 and ASTM El820 standatds which were then subjected to two types of cyclic loadiig amplitude modes namely constant amplitude and random amplitude. The effort is initiated by implementing fatigue data editing approach for random amplitude signal, the conventional method, the finite element method (FEM) and fatigue assessment determination through the statistical method of root mean square (r.m.s) and kurtosis. The input and edited signal acquired will be analyzed for the prediction of the fatigue damage based on the shin model approaches, i.e. Coffm-Manson, Morrow and SWT. From the results obtained, both edited and none d i i signals' load display the same amount of fatigue damage to consequently decmse the analysis duration. In addition, the FEM was found to be the best approach for estimating the fitigue life. This research has finally revealed that the higher cyclic load amplitude will only diminish the fatigue life of a specimen. Furthermore, this fatigue assessment study will Look forward to improve structural engineering development in monitoring components and consequently access the damage prediction variable which could later be implemented to the manufacturing industry.

Item Type: Article
Uncontrolled Keywords: fatigue life assessment; FEA; signal analysis; strain-lie analysis
Subjects: T Technology > TS Manufactures > TS200-770 Metal manufactures. Metalworking
Depositing User: Normajihan Abd. Rahman
Date Deposited: 14 Aug 2018 01:34
Last Modified: 14 Aug 2018 01:34
URI: http://eprints.uthm.edu.my/id/eprint/3902
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