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在许多焊接结构中,圆筒环形对接焊缝是一种主要接头形式。薄壁圆筒的材料品种很多,其直径与壁厚的变化范围很宽,焊接接头的工作条件差异也很大。环形对接焊缝在这些薄壁圆筒中所引起的焊接残余应力与变形的大小、分布规律及其与焊接条件的关系等,都是人们在实际工程上所关心的问题。对圆筒焊缝热弹塑性问题的分析能给出包括残余状态在内的瞬时应力——变形过程的较精确结果,但在实际应用中,采用近似计算方法,可以较简捷地求得满足工程要求的解答。在文献[6]中对较大直径的圆筒上环
In many welded structures, cylindrical butt welds are a form of primary joint. Thin-walled cylinder material variety, the diameter and wall thickness of a wide range of changes, the working conditions of welded joints are also very different. The annular weldments in these thin-walled cylinder caused by the welding residual stress and deformation of the size, distribution and the relationship between the welding conditions, are people in the actual project of concern. The analysis of the thermo-elasto-plasticity of the cylindrical weld can give a more accurate result of the transient stress-deformation process including the residual state. However, in practical application, the approximate calculation method can be used to obtain the simpler method of satisfying the engineering Required answer. In [6] the larger diameter of the cylinder ring