'Finite element modeling of the effect of heat input on residual stresses in dissimilar joints'

Ranjbarnodeh, Eslam; Serajzadeh, Siamak; Hosein Kokabi, Amir; Hanke, Stefanie; Fischer, Alfons
July 2011
International Journal of Advanced Manufacturing Technology;Jul2011, Vol. 55 Issue 5-8, p649
Academic Journal
In the present study, a thermo-elastic-plastic model was developed in order to evaluate the residual stresses in dissimilar automatic tungsten inert gas (TIG) welds between plain carbon steel CK4 and a ferritic stainless steel AISI409. The effect of welding heat input on the magnitude and the distribution of residual stresses was investigated and the results of simulation were validated by X-ray diffraction measurements. It is shown that the calculated residual stresses are in good agreement with the residual stresses determined experimentally. It was found that the magnitudes of stresses at the weld center line increases with increasing the welding speed.


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