Modeling of Welded Structures Residual Strains

This paper explores simulation techniques for prognosis residual strains of welded structures, which consist of common steel parts joined together by means of arc welding. The approach is based on longitudinal and transversal shrinkage forces, applied to the 3d-model of plastic weld zones. The calculations were made on ANSYS - LS-DYNA 970 MPP version on supercomputer SKIF-family located in United Institute of Informatics Problems of National Academy of Sciences of Belarus. The obtained results find good agreement with literature and practice data. Residual welding strains techniques approved for welding tubes, beams and some machine building constructions.