|本期目录/Table of Contents|

[1]李勐,张宏,王宝栋,等.基于有限元的含腐蚀缺陷P110油管失效分析与安全评价[J].中国安全生产科学技术,2016,12(11):93-99.[doi:10.11731/j.issn.1673-193x.2016.11.016]
　LI Meng,ZHANG Hong,WANG Baodong,et al.Failure analysis and safety evaluation on P110 oil tube containing corrosion defects based on finite element method[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(11):93-99.[doi:10.11731/j.issn.1673-193x.2016.11.016]
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基于有限元的含腐蚀缺陷P110油管失效分析与安全评价
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
12
期数:
2016年11期
页码:
93-99
栏目:
现代职业安全卫生管理与技术
出版日期:
2016-11-30

文章信息/Info

Title:
Failure analysis and safety evaluation on P110 oil tube containing corrosion defects based on finite element method
文章编号:
1673-193X(2016)-11-0093-07
作者:
李勐; 张宏; 王宝栋; 刘啸奔
（中国石油大学（北京）机械与储运工程学院，北京 102249）
Author(s):
LI Meng;  ZHANG Hong;  WANG Baodong;  LIU Xiaoben
(College of Mechanical and Transportation Engineering, China University of Petroleum-Beijing, Beijing 102249, China)
关键词:
腐蚀缺陷; P110油管; 安全评价; 复杂工作荷载; 失效模式
Keywords:
P110 oil tube;  corrosion defect;  complicated working load;  failure mode;  safety evaluation
分类号:
X937
DOI:
10.11731/j.issn.1673-193x.2016.11.016
文献标志码:
A
摘要:
含有腐蚀缺陷油管在复杂的工作荷载下容易发生失效。建立了在内压与轴向力共同作用的复杂工作载荷下，含椭球型蚀坑缺陷与轴向沟槽型缺陷两种腐蚀缺陷的油管有限元模型。基于该模型研究了不同载荷工况下缺陷宽度、深度与长度对油管安全性及失效模式的影响。研究结果表明：腐蚀位置深度较浅时，椭球型蚀坑缺陷更危险，油管主要发生由轴力引发的断裂失效；腐蚀位置深度较深时，轴向沟槽型缺陷更危险，主要发生由内压引发的破裂失效。研究成果可为含腐蚀缺陷油管的安全评估提供依据。
Abstract:
The oil tube containing corrosion defects are prone to occur failure under complicated working load. A finite element model of oil tube containing two types of corrosion defect, including the elliptical corrosion pit defect and the axial groove defect, under the complicated working loads with the combined action of internal pressure and axial force was established. The influence of defect width, depth and length on the safety and failure modes of oil tube under different load conditions were investigated. The results showed that when the corrosion location depth is shallow, the ellipsoidal corrosion pit defect is more dangerous, and the fracture failure caused by axial force occurs mainly on the oil tube. When the corrosion location depth is deep, the axial groove defect is more dangerous, and the fracture failure caused by internal pressure occurs mainly. It can provide basis for the safety evaluation on oil tube containing corrosion defects.

参考文献/References:

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[2]肖国清,冯明洋,张华兵,等.含腐蚀缺陷的X80高钢级管道失效评估研究[J].中国安全生产科学技术,2015,11(6):126.[doi:10.11731/j.issn.1673-193x.2015.06.020]
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备注/Memo

备注/Memo:
国家自然科学基金项目（51309236）
更新日期/Last Update: 2017-01-04