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[1]张真维,张鹏,侯向秦.输氢腐蚀管道在轴向拉伸应力与内压共同作用下的失效压力研究*[J].中国安全生产科学技术,2024,20(9):105-111.[doi:10.11731/j.issn.1673-193x.2024.09.012]
　ZHANG Zhenwei,ZHANG Peng,HOU Xiangqin.Study on failure pressure of hydrogen corroded pipeline under combined action of axial tensile stress and internal pressure[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2024,20(9):105-111.[doi:10.11731/j.issn.1673-193x.2024.09.012]
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输氢腐蚀管道在轴向拉伸应力与内压共同作用下的失效压力研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
20
期数:
2024年9期
页码:
105-111
栏目:
职业安全卫生管理与技术
出版日期:
2024-09-30

文章信息/Info

Title:
Study on failure pressure of hydrogen corroded pipeline under combined action of axial tensile stress and internal pressure
文章编号:
1673-193X(2024)-09-0105-07
作者:
张真维; 张鹏; 侯向秦
（西南石油大学 土木工程与测绘学院，四川 成都 610500）
Author(s):
ZHANG Zhenwei;  ZHANG Peng;  HOU Xiangqin
(School of Civil Engineering and Geomatics,Southwest Petroleum University,Chengdu Sichuan 610500,China)
关键词:
安全状况; 有限元; 管道; 氢损伤; 腐蚀; 失效压力
Keywords:
safety status;  finite element;  pipeline;  hydrogen damage;  corrosion;  failure pressure
分类号:
X937；TE832
DOI:
10.11731/j.issn.1673-193x.2024.09.012
文献标志码:
A
摘要:
为评估内压和轴向拉伸应力共同作用下含腐蚀缺陷的氢气管道安全状况，基于Abaqus构建1种三维有限元模型，利用X100管线钢在不同充氢时间下的机械性能，模拟管道的氢损伤程度。研究确定部分参数效应，即轴向拉伸应力、氢损伤和缺陷几何形状。研究结果表明：轴向拉伸应力、内压、腐蚀和氢损伤的协同作用可导致管道失效压力显著降低；失效压力随着氢损伤、轴向拉伸应力、缺陷长度和缺陷深度增加而减小；缺陷区域的应力分布受到轴向拉伸应力、腐蚀缺陷长度和深度的影响，但在正常工作条件下（即内压为10 MPa）却不受氢损伤影响。研究结果有助于更好地理解氢气传输管道的失效行为，从而优化氢损伤情况下的管道设计和完整性管理策略。
Abstract:
To evaluate the safety status of hydrogen gas transmission pipelines containing corrosion defects under the combined action of internal pressure and axial tensile stress,a three-dimensional finite element model was constructed based on Abaqus.The mechanical properties of X100 pipeline steel under different hydrogen charging time were used to simulate the degree of hydrogen damage of pipeline,and the effect of partial parameters,namely axial tensile stress,hydrogen damage,and defect geometry,was studied and determined.The results show that the synergistic effect of axial tensile stress,internal pressure,corrosion,and hydrogen damage can lead to a significant decrease in pipeline failure pressure.The failure pressure decreases with the increase of hydrogen damage,axial tensile stress,defect length,and defect depth.The stress distribution in the defect area is affected by the axial tensile stress,but it is not affected by hydrogen damage under normal operating conditions (i.e.,internal pressure of 10 MPa).The research results are helpful to better understand the failure behavior of hydrogen transmission pipelines,and optimize the pipeline design and integrity management strategy in the case of hydrogen damage.

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备注/Memo

备注/Memo:
收稿日期： 2023-10-31
* 基金项目： 国家自然科学基金项目(50974105)；中国工程院重大咨询研究项目(2011－ZD－20)；高等学校博士学科点专项科研基金项目(20105121110003)
作者简介： 张真维，硕士研究生，主要研究方向为掺氢天然气管道完整性管理。
通信作者： 侯向秦，硕士，副教授，主要研究方向为油气管网风险评价及抗震可靠性分析。
更新日期/Last Update: 2024-10-08