| 用有限元方法分析石油套管矫直产生的残余应力 |
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| 引用本文： | 李连进.用有限元方法分析石油套管矫直产生的残余应力[J].钢管,2006,35(2):29-32. |
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| 作者姓名： | 李连进 |
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| 作者单位： | 天津商学院,天津,300134 |
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| 基金项目： | 国家自然科学基金;天津市科技攻关项目 |
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| 摘 要： | 为消除石油套管轧制和热处理后的纵向弯曲及圆度误差等,一般要采用矫直工艺。而作为石油套管制造最后生产环节的矫直工艺决定了石油套管的几何形状,同时也影响其力学性能。研究了满足石油套管的直线度和圆度要求下的矫直量与残余应力的关系;进行了石油套管矫直时的变形规律分析;建立了石油套管矫直的有限元模型。
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| 关 键 词： | 石油套管 矫直 残余应力 有限元法 |
| 文章编号： | 1001-2311（2006）02-0029-04 |
| 收稿时间： | 2005-07-06 |
Residual Stress Analysis of Oil Casing during Straightening by Finite Element Method |
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| Li Lianjin.Residual Stress Analysis of Oil Casing during Straightening by Finite Element Method[J].Steel Pipe,2006,35(2):29-32. |
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| Authors: | Li Lianjin |
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| Affiliation: | Tianjin University of Commence, Tianjin300134, China |
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| Abstract: | The straightening process is generally used to eliminate the lengthwise curves and the roundness errors of oil casings after their rolling and heat treatment. The straightening process as the last procedure in the production of oil pipes will determine their geometrical sizes and influence their mechanical properties. The rela- tions between the straightening amount and the residual stress are researched in order to meet the requirements for the straightness and the roundness of oil casings. The deformation laws during their straightening are analyzed. The finite element model for the straightening of oil casings is established. |
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| Keywords: | Oil casing Straightening Residual stress Finite element method |
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