Numerička analiza zavarenih spojeva vagonskih konstrukcija

The paper provides guidelines for the numerical fatigue analysis for welded joints in wagon construction. The paper includes a review of the most frequently used European standards in the field of the welded joint fatigue analysis. Theoretical considerations presented in the paper were documented on specific cases of solving the problem of fatigue analysis of welded joints in wagon constructions. The examples show the fatigue analysis of a specific wagon, before and after reconstruction. The analysis was performed in order to determine the types of loads due to which cracks in welded joints occur and to propose the methodology for their repair.