0
Research Papers: Pipeline Systems

Behavior of X60 Line Pipe Subjected to Axial and Lateral Deformations

[+] Author and Article Information
Navid Nazemi

Department of Civil and Environmental Engineering, University of Windsor, Windsor, ON, N9B 3P4, Canada

Sreekanta Das1

Department of Civil and Environmental Engineering, University of Windsor, Windsor, ON, N9B 3P4, Canadasdas@uwindsor.ca

1

Corresponding author.

J. Pressure Vessel Technol 132(3), 031701 (Apr 28, 2010) (7 pages) doi:10.1115/1.4001426 History: Received November 28, 2008; Revised March 08, 2010; Published April 28, 2010; Online April 28, 2010

Buried pipelines may be subjected to various complicated combinations of forces and deformations. This may result in localized curvature, strains, and associated deformations in the pipe wall. As a result, wrinkle may form. The wrinkled pipeline may then develop a rupture in the pipe wall and lose its structural integrity if it is subjected to further sustained loads or deformations. Recently, laboratory tests on NPS6 steel pipes were undertaken at the University of Windsor to study the wrinkling and post-wrinkling behaviors of this NPS6 pipe when subjected to lateral load in addition to internal pressure and axial load. Four full-scale laboratory tests were conducted, and it was found that the application of lateral load on wrinkled pipe produces a wrinkle shape similar to that occurred in a field NPS10 line pipe. Complex test setup was designed and built for successful loading and completion of these tests. This paper makes a detailed discussion on the test setup, test method, loading and boundary conditions, instruments used, and test results obtained from this study.

Copyright © 2010 by American Society of Mechanical Engineers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 1

Accordion type failure under monotonic axial loading (5)

Grahic Jump Location
Figure 2

Rupture in the wrinkle due to cyclic axial deformation (11)

Grahic Jump Location
Figure 3

Shape of the wrinkle in the field NPS10 line pipe

Grahic Jump Location
Figure 4

Schematic of the test setup

Grahic Jump Location
Figure 5

Picture of the test setup

Grahic Jump Location
Figure 6

Swivel head support assembly

Grahic Jump Location
Figure 7

Load-deformation behavior of specimen 4

Grahic Jump Location
Figure 8

Load-deformation behavior of specimen 2

Grahic Jump Location
Figure 9

Deformed shape of specimen 4 at the end of various load steps

Grahic Jump Location
Figure 10

Axial deformation-end rotations of specimens 1 and 4

Grahic Jump Location
Figure 11

Axial load-axial deformation behavior of all specimens

Grahic Jump Location
Figure 12

Comparison of field and lab specimens 2

Grahic Jump Location
Figure 13

Specimen 3 split into two pieces during the pressure test

Grahic Jump Location
Figure 14

Shape of all specimens before the pressure tests

Grahic Jump Location
Figure 15

Relative locations of the strain gauges

Grahic Jump Location
Figure 16

Axial load-strain behavior of specimen 4

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In