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Can I read The Effect of Undercut and Residual Stresses on Fatigue Behaviour of Misaligned Butt Joints on EtoBox?
The Effect of Undercut and Residual Stresses on Fatigue Behaviour of Misaligned Butt Joints by Ninh T. Nguyen; M.A. Wahab is a Engineering article available to read on EtoBox.
What is The Effect of Undercut and Residual Stresses on Fatigue Behaviour of Misaligned Butt Joints about?
A numerical model is developed to predict the combined effect of a weld toe undercut, residual stresses and mi~alignment on the fatigue strength and fatigue life of butt welded joints subjected to pulsating tensile loading. Linear Elastic Fracture Mechanics (LEFM), Finite Element Analysis (FEA) and superposition a]~proaches have been used for the modelling. It has been found that the effect of undercut is the most significant geometrical effect affecting the fatigue behaviour of butt welded joints and is governed by the effect of other weld geometry parameters. The reduction of fatigue life and fatigue strength, in comparison to flush-ground welded plate, caused by an introduction of weld toe undercut is twice that due to welded joint without undercut. It means that by elimination of undercut, fatigue strength can be improved up to 50% of the level that can be obtained by flush-ground welded plate, it is also found that a presence of misalignment of 5% of plate thickness and undercut o:" 2% of plate thickness are fairly representative for the lower boundary of S-N curves of butt joints in a real situation. Fatigue life can be decreased by up to 10 and 100 times compared to perfect
Who reads The Effect of Undercut and Residual Stresses on Fatigue Behaviour of Misaligned Butt Joints?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Ninh T. Nguyen; M.A. Wahab
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0013-7944)
- Published
- 1996
- Language
- EN
- Field
- Engineering (Physical Sciences)