ABSTRACT

The numerical calculation of welds requires detailed knowledge. The reason for this lies in the material and geometric heterogeneity. In the heat-affected zone, the mechanical properties change due to changes in the microstructure. These changes can affect the load bearing and deformation behaviour of welds. For high-strength steels, softening can be crucial. As part of the AiF-FOSTA research project P1020, experimental and numerical investigations were carried out on the influence of production parameters on the load-bearing and deformation behaviour of welds. These include performing dilatometer tests, small part and component tests as well as their numerical recalculation.