Effects of Loading Sequences on Remaining Life of Plain Dents in Buried Liquid Pipelines

Published on May 1, 2019in Journal of Pipeline Systems Engineering and Practice1.5
· DOI :10.1061/(ASCE)PS.1949-1204.0000366
Muntaseer Kainat1
Estimated H-index: 1
Muntaseer Kainat5
Estimated H-index: 5
+ 4 AuthorsSamer Adeeb18
Estimated H-index: 18
(U of A: University of Alberta)
AbstractThe integrity assessment of dents in liquid pipelines, as regulated by codes and standards, is based mostly on depth and threat integration, with strain analysis incorporated as a nonmandat...
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5 Authors (Bo Wang, ..., Steve Nanney)
Cited By3
#1Yunfei Huang (SWPU: Southwest Petroleum University)
#2Peng Zhang (SWPU: Southwest Petroleum University)H-Index: 8
Abstract null null Constrained dents normally cause serious plastification on the pipe under internal pressure due to the restraint of the indenter. Therefore, in this work, the strain response of the API 5 L X80 (referred to as X80 in the remainder part) steel pipeline containing a constrained dent was investigated. Firstly, the formation process of the constrained dented pipeline was numerically simulated by establishing a 3D finite element (FE) model. The model was then verified against the t...
#2Abu Hena MuntakimH-Index: 2
Last. Ashutosh Sutra DharH-Index: 9
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The mechanical damages created on buried pipelines by any external activities are important consideration to assess the structural integrity of pipelines. The damages could be in the form of corrosion, dent, crack, gouge or any combination of these. A dent is a permanent inward plastic deformation in the pipe wall. The dents may not immediately cause failure of the pipe. However, it can reduce the pipe’s structural capacity and cause rupture or leak in the long run. The current researches focus ...
#1Ying Wu (SWPU: Southwest Petroleum University)H-Index: 5
#2Rong ZouH-Index: 1
Last. Guojin Qin (SWPU: Southwest Petroleum University)H-Index: 8
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The residual stress at a dented area is critical to oil and gas pipelines’ integrity and safe operation. A three-dimensional (3D) finite element-based model was developed to investigate the residual stresses in two typical dented areas during the lifecycle stages (pipeline construction and pipeline operation stages). Use of this model enables study of the distribution of the maximum residual stress (σRS) in the dented area. The effects of indenter size, pipeline size, internal pressure and dent ...
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