Numerical Simulation of Residual Stresses in Linear Friction Welded Joints

Abstract

A thermo-mechanical model of linear friction welding has been developed. The temperature distribution during the heating process was determined using a one-dimensional model. The distribution of temperature and stress field during the forging phase was determined by solving the coupled problem in ANSYS. The model allows to predict the effect of welding parameters on the stress field, whereas modeling data are consistent with the residual stresses in welded joints of the Ti6Al4V alloy obtained during the experiment.

Keywords

• linear friction welding
• numerical modeling
• temperature field
• stress-strain state
• residual stresses
• titanium alloys.