| 套管的残余应力对抗挤毁强度的影响 |
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| 引用本文： | 李连进. 套管的残余应力对抗挤毁强度的影响[J]. 钢铁研究, 2005, 33(5): 23-26 |
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| 作者姓名： | 李连进 |
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| 作者单位： | 天津商学院,机械工程学院,天津,300134 |
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| 基金项目： | 天津市自然科学基础研究重点基金资助项目（043615411） |
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| 摘 要： | 运用弹性力学理论,建立了石油套管的力学模型.通过理论和有限元计算,得到了残余应力与石油套管的抗挤毁强度间的关系.研究表明,残余应力在很大程度上影响着石油套管的抗挤毁强度.为提高石油套管的使用寿命,必须根据管体受力状态使残余应力最佳化,以提高套管的抗挤毁强度.
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| 关 键 词： | 有限元法 残余应力 抗挤毁强度 套管 |
| 文章编号： | 1001-1447（2005）05-0023-04 |
| 收稿时间： | 2004-08-31 |
| 修稿时间： | 2004-08-31 |
EFFECT OF PIPE RESIDUAL STRESS ON ITS COLLAPSING STRENGTH |
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| LI Lian-jin. EFFECT OF PIPE RESIDUAL STRESS ON ITS COLLAPSING STRENGTH[J]. Research on Iron and Steel, 2005, 33(5): 23-26 |
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| Authors: | LI Lian-jin |
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| Abstract: | Based on the theory of elasticity mechanics,a mechanical model of casting pipe is established and the relationship between collapsing strength and residual stress is obtained by theoretical and FEM calculations.The research shows that the residual stress of casting pipe has significant influence on its collapsing strength.In order to enhance the service life of casting pipe,it is necessary to optimize the distribution of stress in the pipe body so as to improve the property of collapsing strength. |
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| Keywords: | FEM residual stress collapsing strength casting pipe |
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