Abstract
AbstractFinite element studies on welded joints require a three-dimensional thermal analysis with special considerations like moving heat sources, temperature-dependent material properties, transient heat transfer analysis, etc. However, it is often approximated using a two-dimensional analysis for computational reasons. This work aims to investigate the difference in temperature profiles obtained by two-dimensional and three-dimensional numerical analyses of welded joints using finite element method. A transient 3D finite element analysis is performed using ABAQUS software, and the results are compared with that presented in literature. A cross-sectional 2D model is developed, and the temperature profile obtained is compared with that of 3D analysis. The simulation results suggest that the heat flow along the welding direction has a significant effect on the temperature profiles in the welded plate, and the 2D analysis predicts a lower peak temperature, thus resulting in non-conservative predictions.KeywordsHeat transfer analysisTemperature profiles in weldingFinite element methodWelding simulation
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