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.
对低碳钢管线用的氩弧焊丝的化学成分、机械性能、可焊性能、耐腐蚀性能进行对比分析，为合理选用焊丝提供了依据。
The chemical composition, mechanic property, weldability and corrosion resistance of argon arc welding wire for low carbon steel pipe line are contrasted and analyzed.
本文通过实验研究了不同尺寸的硬质钢球弹丸对不同壁厚的低碳钢圆钢管的侵彻和穿孔效应；
A systematic experimental study has been conducted an mild Steel tubes of various thickness in their perforation by hard steel spheres.
本文通过实验研究了不同尺寸的硬质钢球弹丸对不同壁厚的低碳钢圆钢管的侵彻和穿孔效应；
A systematic experimental study has been conducted an mild Steel tubes of various thickness in their perforation by hard steel spheres.
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