本文利用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计算。
In this paper, the residual welding stresses in a low carbon steel girth butt welded pipe are calculated with a nonlinear finite element code ADINA.
双圈防护网结构：用冷拔碳钢丝焊接成网筒状卷边与网面一体，用连接附件与钢管支柱固定。
Structure: the edges are cylingder rooled with colddrawn lowcarbon steel wire, forming a whole with the mesh sheet.
双圈防护网结构：用冷拔碳钢丝焊接成网筒状卷边与网面一体，用连接附件与钢管支柱固定。
Structure: the edges are cylingder rooled with colddrawn lowcarbon steel wire, forming a whole with the mesh sheet.
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