Measuring and three-dimensional finite element numerical simulation of residual stress of high frequency electric resistance welded pipe

This research measures the residual stress of high frequency electric resistant welded pipe using the central-hole method and analyses the transient state of deformation and residual stress of the weld with ANSYS nonlinear finite element program.The experimental results show conformity compared with the FEA results. And the distributing of residual stress of high frequency resistant welded pipe compared with the that of normal arc welding, but the numerical values are smaller. This result is important to weld project.