The work concerns the modeling and numerical analysis of thermal phenomena in laser welded T-joints. The effect of laser beam slope relative to welded elements on the temperature distribution is analyzed. The shape and size of fusion zone is predicted on the basis of obtained results. Temperature field in welded T-joint is modelled in Abaqus/FEA engineering software as three dimensional task. Numerical analysis takes into account thermomechanical properties changing with temperature for welded plates made of austenitic steel. Additional author’s numerical subroutine DFLUX is implemented into Abaqus/FEA in order to solve issues concerning mathematical description of movable laser welding heat source. Formulas for coordinate system transformations in terms of the rotation of coordinate system about selected angle are used for the proper positioning of the heat source regard to joined edge of T-joint.Keywords: Laser welding, Numerical modelling, Temperature field, T-joint, Abaqus FEA
© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.