| 油气管道多凹痕缺陷相互作用有限元分析 |
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| 引用本文： | 彭星煜,孙德青,徐婧源,王文友,侯莉,唐浩.油气管道多凹痕缺陷相互作用有限元分析[J].石油化工腐蚀与防护,2008,25(5):16-18. |
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| 作者姓名： | 彭星煜 孙德青 徐婧源 王文友 侯莉 唐浩 |
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| 作者单位： | 1. 西南石油大学,四川,成都,610500
2. 中国石化集团安全工程研究院,山东,青岛,266071 |
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| 基金项目： | 国家自然科学基金项目(编号：50678154) |
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| 摘 要： | 文章系统分析了同类凹痕缺陷同轴分布情况下,缺陷深度与油气管道壁厚之比从20%变化至80%条件下最大凹痕作用间距问题。结合现场机械损伤的具体情况,利用有限元分析软件ANSYS100,同时以现场试验数据为基础,分析了相邻凹痕在不同间距下的相互作用情况及对油气管道应力分布的影响规律。突破了传统油气管道安全可靠性评价中,缺乏考虑缺陷深度、缺陷长度和操作压力等多因素影响下多缺陷间相互作用的情况。
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| 关 键 词： | 油气管道 凹痕管道 相互作用 |
Finite Element Analysis for Interaction of Multiple Dents on Oil & Gas Pipelines |
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| Peng Xingyu,Sun Deqing,Xu Jingyuan,Wang Wenyou,Hou Li,Tang Hao.Finite Element Analysis for Interaction of Multiple Dents on Oil & Gas Pipelines[J].Petrochemical Corrosion and Protection,2008,25(5):16-18. |
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| Authors: | Peng Xingyu Sun Deqing Xu Jingyuan Wang Wenyou Hou Li Tang Hao |
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| Affiliation: | Chengdu;Sichuan 610500;Qingdao;Shandong 266071 |
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| Abstract: | Here analyzed are the maximum dent working spacings for oil and gas pipelines with coaxial distribution of the dents and the dent depth to pipeline wall thickness ratio varying from 20% to 80%.The interactions of neighboring dents at different spacings and their impact on the stress distribution of the pipeline are studied using finite element analysis software ANSYS100 based upon the site mechanical damage conditions and field testing data.Unlike the conventional evaluation of safety and reliability of oil... |
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| Keywords: | oil & gas pipeline dented pipeline interaction |
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