Fatigue vibration monitoring of dissimilar joints

Siswanto, Waluyo Adi and Ramakrishna, Jeevana Jothi (2009) Fatigue vibration monitoring of dissimilar joints. In: Malaysian Technical Universities Conference on Engineering and Technology (MUCEET 2009), 20-22 June 2009, Kuantan, Pahang.

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Abstract

Metal dissimilar joints are found in engineering applications and require special attention since the mechanical performance behaviours cannot be considered as comparable with those in similar joints. A current research has been conducted to investigate fatigue vibration life and response under constant loading of dissimilar joint materials. The investigation focusing on two dissimilar joint Stainless Steel to Mild Steel (SSMS), with two benchmark comparisons of MS-MS and SS-SS. The defined three sets of specimens followed standard test of Tensile, Hardness and Fatigue. The monitoring of fatigue vibration was conducted by using laser Doppler; a nondestructive technique. Analysis of S-N and Fatigue Plots of Laser Doppler were then examined. It is found that dissimilar joint materials are quite different compared to similar joint materials due to stress singularity, residual stress and mechanical behaviour. Although dissimilar joints are applicable, conventional welding technique used in this research did not produce comparable mechanical properties and fatigue endurance as the similar joints. This research highlights the importance of considering special treatments of joining technique in regard to dissimilar joint metals. A comparison of S-N plots of similar and dissimilar joint materials are presented.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:dissimilar joint, fatigue vibration, Laser Doppler
Subjects:T Technology > TA Engineering (General). Civil engineering (General)
Divisions:Faculty of Mechanical and Manufacturing Engineering > Department of Engineering Mechanics
ID Code:424
Deposited By:Suhaila Othman
Deposited On:26 May 2010 13:06
Last Modified:21 Jan 2015 16:13

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