Crack Resistance Evaluation on Submarine Pipeline Laying

DOI

10.2991/icmeim-17.2017.24How to use a DOI?

Keywords

Welded Joint, Crack Tip Opening Displacement (CTOD), S-lay, Evaluation

Abstract

Submerged arc welding and double torch automatic welding were used in the girth welding of X65 pipeline steel for two-joint-one prefabrication and principal line welding, respectively. The crack tip opening displacement (CTOD) tests of the welded joints were conducted at minus 10 degrees Celsius. The critical CTOD values in pipeline laying process were obtained from the evaluation based on fracture mechanics and compared with the experimental result. The result of comparison showed that the crack resistances of the welded joints in this paper meet the requirement for pipeline laying, so that the pipeline won't crack during S-lay. This method provides reference evidence for the crack resistance evaluation of the welded submarine pipeline laying.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Chun-run Li
AU  - Ya-zhang He
AU  - Hua-qing Yang
PY  - 2017/02
DA  - 2017/02
TI  - Crack Resistance Evaluation on Submarine Pipeline Laying
BT  - Proceedings of the 2017 International Conference on Manufacturing Engineering and Intelligent Materials (ICMEIM 2017)
PB  - Atlantis Press
SP  - 127
EP  - 131
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmeim-17.2017.24
DO  - 10.2991/icmeim-17.2017.24
ID  - Li2017/02
ER  -