NUMERICAL ASSESSMENT OF DENTED PIPE USING INLINE INSPECTION DATA

被引：0

作者：

Murugathasan, Parththeeban ^{[1
]}

Dhar, Ashutosh Sutra ^{[1
]}

Debnath, Suborno ^{[2
]}

Muntakim, Abu ^{[2
]}

Roy, Kshama ^{[2
]}

机构：

[1] Mem Univ Newfoundland, St John, NF, Canada

[2] Northern Crescent Inc, Calgary, AB, Canada

来源：

PROCEEDINGS OF THE ASME 2020 13TH INTERNATIONAL PIPELINE CONFERENCE (IPC2020), VOL 1 | 2020年

关键词：

Dent; ILI data; FE analysis; Fatigue; Remaining life;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The current finite element (FE) assessment methods of dented pipes are based on specific dent profiles, which are generally created based on the shape of indenters. However, the actual dent profile in real case scenarios is mostly irregular in shape, depending on the cause of damage. In this paper, FE analyses of dented pipes using inline inspection (ILI) data are presented. Based on the ILI data, the dent profile is generated by applying the nodal displacements to all the pipe nodes. The validation of this nodal displacement approach is discussed in this paper. Besides, a parametric study is carried out to study the behavior of dent for different dent depth, pipe geometry, and pipe grades. The significance of residual stresses generated during the dent formation on the behavior of dented pipe during the service life is also discussed. Finally, the remaining life estimation of dented pipes according to the API 579-1 is presented using FE analysis results.

引用

页数：7

共 15 条

[1]

API, 2016, API REC PRACT 579

[2]

Baumel J.A., 1990, Material data for cyclic loading

[3]

Canadian Standards Association (CSA), 2019, CSA Z662

[4] The effect of dents in pipelines - guidance in the pipeline defect assessment manual [J].

Cosham, A ;

Hopkins, P .

INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, 2004, 81 (02) :127-139

[5]

Dhar AS, 2015, PROC ASME 2015 34 IN

[6] Low Cycle Fatigue Behaviour of API 5L X65 Pipeline Steel at Room Temperature [J].

Fatoba, Olusegun ;

Akid, Robert .

XVII INTERNATIONAL COLLOQUIUM ON MECHANICAL FATIGUE OF METALS (ICMFM17), 2014, 74 :279-286

[7]

Fernandes A A., 2018, Monotonic and Ultra-low-cycle fatigue behaviour of pipeline steels" page, P298, DOI DOI 10.1007/978-3-319-78096-2

[8]

Ghaednia H., 2014, PROC INT MECH ENG C, P1

[9] Safe burst strength of a pipeline with dent-crack defect: Effect of crack depth and operating pressure [J].

Ghaednia, Hossein ;

Das, Sreekanta ;

Wang, Rick ;

Kania, Richard .

ENGINEERING FAILURE ANALYSIS, 2015, 55 :288-299

[10] Effect of Operating Pressure and Dent Depth on Burst Strength of NPS30 Linepipe With Dent-Crack Defect [J].

Ghaednia, Hossein ;

Das, Sreekanta ;

Wang, Rick ;

Kania, Richard .

JOURNAL OF OFFSHORE MECHANICS AND ARCTIC ENGINEERING-TRANSACTIONS OF THE ASME, 2015, 137 (03) :1-8

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