Multipass butt welding of two 0.2 m thick steel plates has been investigated. The objective is to calculate residual stresses and compare them with measured residual stresses. The material properties depend on temperature and temperature history. This dependency is accounted for by computing the microstructure evolution and using this information for computing material properties. This is done by assigning temperature dependent material properties to each phase and applying mixture rules to predict macro material properties. Two different materials have been used for the microstructure calculation, one for the base material and one for the filler material.
Issue Section:Technical Papers
Keywords:welding, steel, internal stresses, crystal microstructure, digital simulation
Karlsson, L., 1997, “Modeling in Welding, Hot Powder Forming and Casting,” ASM International, ISBN: 0-87170-616-4.
Inoue T., and Wang Z. G., 1983, “High-Temperature Behavior of Steels with Phase Transformation and the Simulation of Quenching and Welding Processes,” Proc. of 4th Int. Conf. Mechanical Behavior of Materials, Stockholm, Sweden, Aug., pp. 1015–1021.
Bergheau J. M., and Leblond J. B., 1991, “Coupling Between Heat Flow, Metallurgy and Stress-Strain Computations in Steels: The Approach Developed in the Computer Code Sysweld for Welding and Quenching,” Proc. of the 5th Int. Conf. Modelling of Casting, Welding and Advanced Solidification Processes, The Minerals, Metals & Materials Society, pp. 203–210.
J. M. J., and
Microstructural predictions including arbitrary thermal histories reaustenization, and carbon segregation effects,”
Can. Metall. Q.,
Kirkaldy, J. S., and Venugopalan, D., 1983, “Prediction of Microstructure and Hardenability in Low Alloy Steels,” Proc. Int. Conf. on Phase Transformations in Ferrous Alloys, Marder A. R., and Goldstein, J. R., eds., Philadelphia, Oct. pp. 125–148.
Bo¨rjesson, L., and Lindgren, L-E., 1997, “Residual Stresses and Microstructure Computation for Multipass Welding,” ICRS-5, pp. 189–194, Linko¨ping, Sweden.
Sjo¨stro¨m, S., 1982, “The calculation of quench stresses in steel,” thesis no 84, Univ. of Linko¨ping, Sweden.
Transient and residual thermal strain-stress analysis of GMAW,”
ASME J. Eng. Mater. Technol.,
Simulation of multipass welding of a thick plate,”
Int. J. Numer. Methods Eng.,
Measurement Group, 1985, “Measurement of residual stresses by the hole drilling strain-gage method,” TN-503-1, Raleigh North Carolina, USA.
Lindgren, L-E., 1999, “A welding simulation revisited,” 3rd Int. Congress on Thermal Stresses, Cracow, Poland, June.
B. A. B.,
Thermal stresses in a submerged-arc welded joint considering phase transformations,”
ASME J. Eng. Mater. Technol.,
McDill, J. M. J., Oddy, A. S., and Goldak, J. A., 1992, “Comparing 2-D plane strain and 3-D analyses of residual stresses in welds,” Proc. of 3rd International Conference on Trends in Welding Research, Gatlinburg, Tennessee, June.
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