Direct measurements, numerical predictions and simple formula estimations of welding-induced biaxial residual stresses in a full-scale steel stiffened plate structure

As a sequel to another paper of the authors on welding-induced initial deformations [1], this aimed obtain direct measurement database biaxial residual stresses in full-scale steel stiffened plate structure and also study applicability computational models predict them. A association with panels bottom structures an as-built containership carrying 1900 TEU was fabricated using exactly same welding technology as used today’s shipbuilding industry. The X-ray diffraction method employed measure stress distributions plating. In addition simple formula estimations, three-dimensional thermo-elastic-plastic finite element were applied distributions. comparison between measurements, numerical predictions estimations made. Details measurements are documented they can be useful validate formulated by other researchers.