腐蚀缺陷管道风险评估有限元模拟研究
SIMULATION OF RESIDUAL STRENGTH OF CORRODED DEFECTING PIPELINE IN FINITE ELEMENT ANALYSIS
摘 要
腐蚀缺陷的破裂是管道的主要失效形式.通过建立实体单元并考虑几何非线性和材料的非线性,采用线弹性有限元模型对腐蚀缺陷管道参数进行了计算和分析.通过对模型上不同形状和位置的缺陷进行模拟,设定不同的压力条件和缺陷处管壁的厚度,分别计算出在每个压力情况下不同厚度时缺陷处强度值,得出腐蚀缺陷管道内压、缺陷厚度与缺陷处应力三者之间的关系,进而对腐蚀缺陷管道进行初步的风险评估.
风险评估
有限元分析
ANSYS
Corroded pipeline
Risk evaluation
Finite element analysis
ANSYS
Abstract
The rupture of corroded defects is the primary failure of pipelines.The finite element analysis method was mainly used to analyze and evaluate the corroded pipeline through building a entity model and considering the nonlinearity of geometry and the nonlinearity of material model.After simulating the different shapes and positions of corroded defects,the defect strength at different thicknesses was calculated.The relation of internal air pressure of pipeline,defect thickness and defect stress were obtained.This method can be used for the risk evaluation of corroded pipeline effectively.
中图分类号 TG174
所属栏目 应用技术
基金项目
收稿日期 2007/1/31
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引用该论文: ZHANG Wei,WANG Yong,BI Feng-qin,ZHANG Xu-yun,ZHU Xia. SIMULATION OF RESIDUAL STRENGTH OF CORRODED DEFECTING PIPELINE IN FINITE ELEMENT ANALYSIS[J]. Corrosion & Protection, 2007, 28(12): 652～654
被引情况:
【1】郑文茹,杜翠薇,刘智勇,李晓刚,李月强, "埋地燃气管道泄漏失效与数据库研究进展",腐蚀与防护 34, 723-726(2013)
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参考文献
【1】姜如桦.腐蚀管道剩余寿命的性能衰减模型研究[J].油气储运,2000,19(11):12-16.
【2】彭善碧,李长俊.油气管道剩余强度评价方法[J].石油工程建设,2005,31(3):17-19.
【3】方华灿.油气长输管线的安全可靠性分析[M].北京:石油工业出版社,2002:1-3.
【2】彭善碧,李长俊.油气管道剩余强度评价方法[J].石油工程建设,2005,31(3):17-19.
【3】方华灿.油气长输管线的安全可靠性分析[M].北京:石油工业出版社,2002:1-3.
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