MODELING of WELDING SEAM SEQUENCES

This paper explores simulation techniques for prognosis residual strains of welded structures taking into account welding seam sequences. Simplified approaches of welding stress and strain theories were used and implemented on SKIF-family supercomputers. The elaborated program options allow to apply the fictitious shrinkage forces to the weld models of arbitrary space location. The results of the experimental computational verification of the proposed approaches are presented, welded structures models of complicated design being used. The obtained results meet good agreement with data obtained in the production processes and special literature.