Strength and Deformation Characteristics of Helical Seam Welded Large Diameter Pipes
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article number
01252_2010_SP1_01
Field Cold Bending and related issues
The present paper discusses issues of pipeline design in terms of possible cold bending processes during pipe laying on the construction site. Mechanical aspects of the elasto-plastic structural behavior within and after the bending process are analyzed with respect to high grade pipeline steels. The influence of the cold bending process on operating conditions and the ultimate limit state bursting are treated. Conclusions are drawn by comparing straight and cold bended pipe joints with respect to their burst behavior. The paper concludes with an analysis of the stresses in normal and tangential weld seam direction.
| Authors | Oliver Hilgert/Steffen Zimmermann, Franz Martin Knoop |
|---|---|
| Publishing Date | 30 Apr 2010 |
| Format | |
| Zeitschrift | 3R - Special 1 2010 |
| Publisher | Vulkan-Verlag GmbH |
| Language | English |
| Pages | 6 |
| Title | Strength and Deformation Characteristics of Helical Seam Welded Large Diameter Pipes |
| Subtitle | Field Cold Bending and related issues |
| Description | The present paper discusses issues of pipeline design in terms of possible cold bending processes during pipe laying on the construction site. Mechanical aspects of the elasto-plastic structural behavior within and after the bending process are analyzed with respect to high grade pipeline steels. The influence of the cold bending process on operating conditions and the ultimate limit state bursting are treated. Conclusions are drawn by comparing straight and cold bended pipe joints with respect to their burst behavior. The paper concludes with an analysis of the stresses in normal and tangential weld seam direction. |
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