Investigation on Effect of Tube Hydroforming Parameters on Thickness and Residual Stresses in a T Shaped Tubes by Finite Element Method

In this paper finite element simulation of hydroforming T shaped tube steel with elastic-plastic non-dependent temperature behavior by the aid of ABAQUS has been done and the effects of some parameters like fillet radius, internal pressure and friction coefficient on thickness distribution and residual stresses have been studeid. According to the results, these parameters have tangible effect. In extreme conditions, residual stresses are about to 90 percent of yield strength and thickness has been reduced to 40 percent. Afterall simulation results have been validated with experimental data and comparison showed good proximity.