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[1]付雅茹,张东,闫锋,等.CO2管道裂纹韧性扩展速度数值模拟[J].油气储运,2024,43(04):395-403.[doi:10.6047/j.issn.1000-8241.2024.04.004]
　FU Yaru,ZHANG Dong,YAN Feng,et al.Numerical simulation of ductile crack propagation velocity in CO2 pipeline[J].Oil & Gas Storage and Transportation,2024,43(04):395-403.[doi:10.6047/j.issn.1000-8241.2024.04.004]
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CO2管道裂纹韧性扩展速度数值模拟

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 43 期数: 2024年04期 页码: 395-403 栏目: 低碳与新能源 出版日期: 2024-04-25
Title:
Numerical simulation of ductile crack propagation velocity in CO2 pipeline
文章编号:
1000-8241（2024）04-0395-09
作者:
付雅茹1; 张东1; 闫锋2; 王熠凡1; 白芳3; 张宏1; 刘啸奔1
1.中国石油大学（北京）·油气管道输送安全国家工程研究中心·石油工程教育部重点实验室·城市油气输配技术北京市重点实验室;2.国家管网集团科学技术研究总院分公司;3.中国石油天然气管道工程有限公司
Author(s):
FU Yaru1; ZHANG Dong1; YAN Feng2; WANG Yifan1; BAI Fang3; ZHANG Hong1; LIU Xiaoben1
1.China University of Petroleum (Beijing)//National Engineering Research Center for Pipeline Safety//MOE Key Laboratory of Petroleum Engineering//Beijing Key Laboratory of Urban Oil and Gas Distribution Technology; 2.PipeChina Institute of Science and Technology; 3.China Petroleum Pipeline Engineering Corporation
关键词:
超临界CO2管道; 裂纹扩展; 内聚力模型; 止裂压力
Keywords:
supercritical CO2 pipeline;  crack propagation;  Cohesive Zone Model（CZM）;  crack arrest pressure
分类号:
TE88
DOI:
10.6047/j.issn.1000-8241.2024.04.004
文献标志码:
A
摘要:
【目的】碳捕集、利用与封存技术是减少CO2排放的重要战略储备技术，超临界CO2管道运输是连接碳捕集与碳封存最经济有效的方式。受超临界CO2的减压波特性与CO2的焦耳-汤姆逊效应影响，管道断裂后容易发生长程裂纹扩展，使得管道运行安全受到威胁。【方法】为探究超临界CO2管道的裂纹扩展机理，选取L360M管道的母材横向试样开展了示波冲击试验，建立数值仿真模型并应用内聚力模型描述材料损伤，通过对比试验曲线与模拟曲线，对内聚力模型参数进行标定；建立超临界CO2管道裂纹扩展有限元模型，将校准的内聚力模型参数输入有限元模型中开展管道裂纹扩展模拟，探讨内压、壁厚、管径等因素对管道裂纹扩展速度的影响。【结果】内聚力模型可以较好地模拟裂纹动态扩展过程，所得模拟结果与试验结果总体趋势一致，经过试验校准及验证的内聚力模型参数可用于管道模型裂纹扩展的数值模拟；对于超临界CO2管道而言，增大内压与管径、减小壁厚都会增加管道裂纹扩展速度。【结论】计算得到了超临界CO2管道在不同管径及壁厚下对应的止裂压力与适用于直径323mm管道的最小壁厚，研究结果可为超临界CO2管道裂纹止裂提供理论基础，具有一定实际工程参考意义。（图17，参27）
Abstract:
[Objective] Carbon Capture, Utilization, and Storage (CCUS) technology is recognized as a crucial technology for strategically reducing CO2 emissions. Supercritical CO2 pipeline transmission represents the most cost-effective method to connect carbon capture with carbon storage. Due to the decompression wave characteristics of supercritical CO2 and the Joule-Thomson effect of CO2, CO2 pipelines are susceptible to long-distance crack propagation following fractures, posing a threat to the safety of pipeline operation. [Methods] Instrumented impact experiments were conducted, using transverse specimens from the base metal of L360M pipes, to investigate the crack propagation mechanism of supercritical CO2 pipelines. Following that, a numerical simulation model was established and the Cohesive Zone Model （CZM）was utilized to describe material damage. By comparing curves from the experiments and simulations, parameters were calibrated for the CZM, leading to the development of a finite element model for crack propagation in supercritical CO2 pipelines. Simulations were performed after inputting the calibrated CZM parameters into the finite element model, to explore the effects of internal pressure, wall thickness, and pipe diameter on the crack propagation velocity. [Results] The CZM effectively simulated the dynamic progression of crack propagation, and the simulation results exhibited an overall trend consistent with the experimental results. The CZM parameters calibrated and verified through comparison with experimental results proved effective in numerically simulating crack propagation within the pipeline model. In supercritical CO2 pipelines, the crack propagation velocity increased with higher internal pressure, larger pipe diameter, and lower wall thickness. [Conclusion] Crack arrest pressures corresponding to different pipe diameters and wall thicknesses and the minimum wall thickness suitable for a pipe diameter of 323 mm were identified for supercritical CO2 pipelines through calculations based on the above results. The research outcomes lay a theoretical groundwork for understanding crack arrest in supercritical CO2 pipelines and offer practical engineering applications with a useful reference point. (17 Figures, 27 References)

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备注/Memo

付雅茹，女，1999年生，在读硕士生，2021年毕业于太原理工大学安全工程专业，现主要从事油气装备失效分析与完整性管理等方向的研究工作。地址：北京市昌平区府学路18号，102249。电话：15148463155。Email：fffuyaru@163.com
通信作者：刘啸奔，男，1991年生，副教授，2018年博士毕业于中国石油大学（北京）安全科学与工程专业，现主要从事油气储运设施结构强度与完整性评价技术的教学与科研工作。地址：北京市昌平区府学路18号，102249。电话：010-89731239。Email：xiaobenliu@cup.edu.cn
基金项目：国家重点研发计划“中俄管道重大风险防控与安全保障关键技术”，2022YFC3070100；国家自然科学基金资助项目“逆断层作用下X80管道屈曲演化与韧性破损机理研究”，52004314；北京市科协“青年人才托举工程”项目“高钢级管道环焊缝可靠性评价方法研究”，BYESS2023261；国家管网科学研究与技术开发项目“高钢级管道环焊缝失效机理研究”，WZXGL202105；国家管网科学研究与技术开发项目“高钢级管道环焊缝缺陷检测评价技术研究”，WZXGL202104；中国石油大学（北京）科研基金资助项目“掺氢管道环焊缝失效机理与评价方法研究”，2462023BJRC005。
· Received: 2023-07-05 · Revised: 2023-08-08 · Online: 2024-03-13

更新日期/Last Update: 2024-04-25