Thermal and Mechanical Analysis of Single U Welding Joint and Unsymmetrical Double U Welding Joint of Thick Steel Alloy Plates

The development of an accurate and meticulously designed simulation model for heat distribution during welding has helped maintain the popularity of welding as a reliable approach for attaching components. A simulated heat source involves uneven heating, resulting in uneven deformation and stress. An ANSYS simulation is used to analyze the stress in a welded flat plate. The simulation models are created using SOLIDWORKS software. The model employs the temperature-dependent characteristics of alloy steel to function as a thermal model that evaluates stress and the distribution of heat within the structure. This study offers a comprehensive examination of welded joints through the utilization of THERMO-MECHANICAL Finite Element Analysis (FEA) tools, specifically ANSYS. The study focuses especially on the analysis of single U and unsymmetrical double U welding connections. The study examined the heat distribution, thermal loads, and impacts on fixtures associated with welding, specifically focusing on the design of the welding joint. The results indicate that the heat from welding caused a maximum deformation of 0.55 mm for the single U joint and 0.54 mm for the double U welding joints. Both joint configurations displayed significant thermal stress at a distance of 5 mm from the center of the weld. According to the ANSYS models, the heat-affected zone (HAZ) has a length of 45.4 mm forAa single U joint and 53.6 mm for an unsymmetrical double U joint. The second aspect of this investigation involves assessing the comparative durability or thermal strains of various depositions in the previously mentioned joint. Moreover, it is essential to assess the expected heat distortion and stress when examining prospective welding materials for on-site use. This will enhance the implementation of the material.