An Investigation into the Effects of Spot Diameter and Sheets Thickness on Fatigue Life of Spot Welded Structure Based on Fea

This study presents the effect of the spot weld and sheets thickness on the fatigue life of the of the spot-weld joints to predict the lifetime and location on the weakest spot-welds due ti the variable amplitude loading conditions. A simple model was used to illustrate the technique of spot-weld fa...

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Bibliographic Details
Main Authors: M. M., Noor, M. M., Rahman, R. A., Bakar, M. S. M., Sani
Format: Article
Language:English
Published: MedWell, Journal 2008
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/1239/
http://umpir.ump.edu.my/id/eprint/1239/1/2008_J20_RJAS_MMRahman_M.M.Noor.pdf
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Summary:This study presents the effect of the spot weld and sheets thickness on the fatigue life of the of the spot-weld joints to predict the lifetime and location on the weakest spot-welds due ti the variable amplitude loading conditions. A simple model was used to illustrate the technique of spot-weld fatigue analysis. Finite element model and analysis were carried out utilizing the finite element analysis commercial codes. Linear elastic finite element analysis was carried out to predict the stress state along the weld direction. It can be seen from of the model. Acquired results were shown the predicted life for the nugget and the two sheet around the circumference of the spot-weld at which angle the worst damage occurs. The spot-welding fatigue analysis techniques are awfully essential for automotive structure design.