A two-dimensional axial-symmetric finite-element model of welding residual stresses of thick-wall pipe has been proposed based on the theory of thermal-elastoplasticity.

• 以热-弹塑性理论为基础,建立了厚壁管环焊残余应力的二维轴对称有限元模型,利用ANSYS有限元分析软件,模拟了耐热钢厚壁管环焊对接的应力分布。