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Abstract: In this paper the residual stresses in a butt-welded plate of 2.25Cr 1Mo has been analyzed using a 3D and transient finite element (FE) model. Also the effect of the welding-electrode speed has been studied using death and birth of FEs. For this purpose, a coupled thermo-mechanical FE solution has been used to obtain the temperature distribution and the resulting residual stresses. Also, the variations of the physical properties of the material with temperature have been taken into account. Results show that the residual stresses in the heat affected zone (HAZ) are maximum and change along the weld and also in the plate-thickness. It has been shown that use of the 3D and transient model will lead to more accurate and realistic results which are well compared with the experimental test data.

[1] ASM (American Society of Metals) Handbook, 1993. Welding, Brazing and Soldering, Vol. 6, ASM International, USA.

[2] Deng, D., Murakawa, H., 2006. Numerical simulation of temperature field and residual stress in multi-pass welds in stainless steel pipe and comparison with experimental measurements. Computational Materials Science, 37(3):269-277.

[3] Eslami, M.R., Hetnarski, R.B., 2009. Thermal Stresses— Advance Theory and Applications. Gladwell, G.M.L. (Ed.), Solid Mechanics and Its Applications, Springer, Netherlands, Vol. 158, in press.

[4] Free, J.A., Goff, R., 1989. Predicting residual stresses in multi-pass weldments with the finite element method. Computers and Structures, 32(2):365-378.

[5] Friedman, E., 1975. Thermo mechanical analysis of the welding process using the finite element method. International Journal of Pressure Vessels and Piping, 97:206-213.

[6] Gery, D., Maropoulos, H., 2005. Effects of welding speed, energy input and heat source distribution on temperature variations in butt joint welding. Journal of Materials Processing Technology, 167(2-3):393-401.

[7] Hibbitt, H.D., Marcal, P.V., 1973. A numerical thermo-mechanical model of the welding and subsequent loading of a fabricated structure. Computers and Structures, 3(5):1145-1174.

[8] Kou, S., 2003. Welding Metallurgy (2nd Ed.). John Wiley & Sons, Hoboken, New Jersey, p.48-52.

[9] Lee, C.H., Chang, K.H., 2007. Numerical analysis of residual stresses in welds of similar or dissimilar steel weldments under superimposed tensile loads. Computational Materials Science, 40(4):548-556.

[10] Masubuchi, K., 1991. Residual stresses and distortion in welded structures. Welding Journal, 70(1212):41-47.

[11] Messler, R.W., 2004. Principles of Welding. Wiley-Vch Verlag GmbH & Co. KGaA, Weinheim, p.162-167.

[12] Murugan, S., Rai, S.K., Kumar, P.V., Jayakumar, T., Raj, B., Bose, M.S.C., 2001. Temperature distribution and residual stresses due to multi pass welding in type 304 stainless steel and low carbon steel weld pads. International Journal of Pressure Vessels and Piping, 78(4):307-317.

[13] Parmar, R.S., 1999. Welding Engineering and Technology. Khanna Publishers, Delhi.

[14] Rybicki, E.F., Schmueser, D.W., Stonesifer, R.W., Groom, J.J., Mishler, H.W., 1978. A finite-element model for residual stresses and deflections in girth-butt welded pipes. International Journal of Pressure Vessels and Piping, 100(8):256-262.