engleski

Welding simulation using element birth and death method in ANSYS software and residual stress comparison

In this paper, the welding process has been simulated using element birth and death method in program ANSYS Workbench. Starting welding parameters were chosen and heat input was implemented in discretized 3D model of pipe and plate for every part of circular weld in defined time intervals. Circular weld was gradually formed for every time interval using element birth option to simulate filler material deposition. After welding simulation, extra thermal simulation was used to analyze cooling effects at room temperature on stagnant air. Temperature field results during cooling time of the model were used to analyze residual stresses in the welded part. For comparison of residual stresses, an identical numerical model was used, only without using element birth and death to see the difference.

welding simulation ; , element birth and death ; residual stress

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