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DOI:	10.1371/journal.pone.0154314
论文题名:	Collapse of Corroded Pipelines under Combined Tension and External Pressure
作者:	Hao Ye; Sunting Yan; Zhijiang Jin
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2016
发表日期:	2016-4-25
卷:	11, 期:4
语种:	英语
英文关键词:	Corrosion ; Anisotropy ; Finite element analysis ; Hydrostatic pressure ; Material properties ; Programming languages ; Deep sea ; Fortran
英文摘要:	In this work, collapse of corroded pipeline under combined external pressure and tension is investigated through numerical method. Axially uniform corrosion with symmetric imperfections is firstly considered. After verifying with existing experimental results, the finite element model is used to study the effect of tension on collapse pressure. An extensive parametric study is carried out using Python script and FORTRAN subroutine to investigate the influence of geometric parameters on the collapse behavior under combined loads. The results are used to develop an empirical equation for estimating the collapse pressure under tension. In addition, the effects of loading path, initial imperfection length, yielding anisotropy and corrosion defect length on the collapse behavior are also investigated. It is found that tension has a significant influence on collapse pressure of corroded pipelines. Loading path and anisotropic yielding are also important factors affecting the collapse behavior. For pipelines with relatively long corrosion defect, axially uniform corrosion models could be used to estimate the collapse pressure.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0154314&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/23218
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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File Name/ File Size	Content Type	Version	Access	License
journal.pone.0154314.PDF（3208KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Institute of Process Equipment, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China;Institute of Process Equipment, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China;Institute of Process Equipment, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, China

Recommended Citation:

Hao Ye,Sunting Yan,Zhijiang Jin. Collapse of Corroded Pipelines under Combined Tension and External Pressure[J]. PLOS ONE,2016-01-01,11(4)

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