根据对大量焊接结构和压力容器残余应力现场检测结果,结合强度理论的破坏准则,提出了用一点的应力水平系数k及消应力系数η来评价焊接残余应力水平和消应力效果。分析表明,用应力水平系数k及消应力系数η能够评价焊接残余应力水平和消应力效果。 According to a large number of on-site testing results of residual stress of welded structures and pressure vessels and failure criterion of bond strength theory, a new stress level coefficient k and a stress-relieving coefficient η are proposed to evaluate welding residual stress level and stress relief effect. The analysis shows that the residual stress level and the stress relief effect can be evaluated by the stress level coefficient k and the stress-relief coefficient η.