Analytical solution for upheaval buckling in buried pipeline

✍ Scribed by Fausto Andreuzzi; Arcangelo Perrone

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 80 KB
• Volume: 190
• Category: Article
• ISSN: 0045-7825
• DOI: 10.1016/s0045-7825(00)00366-2

✦ Synopsis

This work deals with the evaluation of the conditions that generate the local buckling in a buried pipeline due to a temperature gradient across its wall. The transport pipelines are often subjected to thermal gradients since the ¯uid temperature inside the pipe is greater than the external one. The minimal value of internal wall temperature depends on the physical properties of the inner ¯uid and thermal exchanges toward the surrounding environment.

The present analysis has been performed for applications to submarine pipelines end supported by S.I.L.MAR. s.r.l. in a basic design study for pipelines in the North Sea. The problem here presented concerns the calculation of the limit elastic instability axial