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Capacity Analysis of PE Pipeline With Non-Planar Defect

[+] Author Affiliations
Weijie Jiang, Jianping Zhao

Nanjing University of Technology, Nanjing, Jiangsu, China

Dingyue Chen

Ningbo Special Equipment Inspection Institute, Ningbo, Zhejiang, China

Paper No. PVP2013-97616, pp. V06BT06A036; 8 pages
doi:10.1115/PVP2013-97616
From:
  • ASME 2013 Pressure Vessels and Piping Conference
  • Volume 6B: Materials and Fabrication
  • Paris, France, July 14–18, 2013
  • Conference Sponsors: Pressure Vessels and Piping Division, Nondestructive Evaluation Engineering Division
  • ISBN: 978-0-7918-5571-3
  • Copyright © 2013 by ASME

abstract

A tensile test of buried PE pipe is designed to test the mechanical performance. Then the constitutive model for the PE pipe can be established. The limit load of the PE pipe with local thinning defect can be studied with the method of combining the orthogonal design of experiment and finite element analysis. Then the factors of local thinning defect pipe limit load factors can be analyzed. The results show that the depth of the defect has a great effect on the limit load (internal pressure and bending moment) of PE pipe. The effects that the axial length of the defect and the circumferential length of the defect have on the limit load are not significant.

Copyright © 2013 by ASME

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