【摘要】 介绍了薄壁筒焊缝残余应力的实验研究。研究结果表明 ,薄壁筒环焊缝存在残余压应力 ,且垂直于焊缝纵向呈压应力分布 ,同时通过电测实验 ,对电测法测定压力容器残余应力的可靠性及测试精度进行了探讨和评价。更多还原

【Abstract】 This paper introduced an experimental research on welding residual stresses of thin wall cylinder. The result of the research proved the cylinder’s ring weld exists residual compressive stresses, and these form transverse compressive stress distribution along the lengthways direction of the weld. At the same time, this paper discussed and appraised the dependability and the test accuracy of the electrical logging method in determining the residual stresses of the pressure vessel.更多还原