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利用ＡＤＩＮＡ非线性分析有限元程序，对低碳钢管道环焊缝接头焊接残余应力进行有限元分析。在热弹塑性分析中考虑了材料热物理和力学性能依赖于温度变化。结果表明：在管道接头内表面焊缝中心及近缝区轴向和环向残余应力均为拉应力，随离开焊缝距离的增加，逐渐过渡为压应力。在管道接头外表面焊缝中心处的轴向残余应力为压应力，而环向残余应力为拉应力。计算预测值与实测值基本一致，表明有限元法能够经济而有效地预测管道环焊缝接头的焊接残余应力。
Finite element analysis of welding residual stresses in mild steel pipe girth weld joints was carried out by using ADINA nonlinear analysis finite element program. In thermo-elasto-plastic analysis, the thermophysical and mechanical properties of materials are considered to depend on temperature changes. The results show that the axial and circumferential residual stress in the weld center and the near seam area of the pipe joint are all tensile stress, and gradually change to compressive stress as the distance from the weld seam increases. The axial residual stress at the weld center of the outer surface of the pipe joint is compressive stress, while the circumferential residual stress is the tensile stress. The predicted values are basically consistent with the measured values, which shows that the finite element method can predict the welding residual stress of pipeline girth weld economically and effectively.