Abstract
This paper presents a finite element model of submerged arc welding. The modeling of the filler material has been performed by applying the technique for deactivation and subsequent activation of the finite elements involved in the welding seams. The nonlinear material properties are taken into account. The description of the peaks in the specific heat capacity in the phase changes has been done by introducing latent heat. The welding arc is modeled as a heat source with a constant heat flux density. Experiments have been conducted to validate and verify the numerical model. The influence of the ratio between surface and volume of the set heat sources has been studied. Tack welds have been taken into account. Data on the relationship between the accuracy of the obtained results and the number of passages has been presented.
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