| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 267687 | Engineering Structures | 2011 | 7 Pages |
The paper investigates buckle propagation in deep sub-sea pipelines. Experimental results are presented using ring squash tests and hyperbaric chamber tests, and are compared with a modified analytical solution and with numerical results using finite element analysis. The experimental investigation was conducted using commercial aluminium pipes with diameter-to-thickness (D/t)(D/t) ratio in the range 20–48. In contrast to conventional cylindrical pipe, a faceted cylindrical geometry is also investigated. Preliminary analysis of a faceted pipe shows that a substantial increase in buckling capacity can be achieved for the same D/tD/t ratio.
► The paper investigates buckle propagation in deep sub-sea pipelines. ► Experimental results are presented using ring squash tests and hyperbaric chamber tests. ► A modified analytical solution and numerical results are compared with experimental results using finite element analysis. ► In contrast to conventional cylindrical pipe, a faceted cylindrical geometry is proposed. ► Preliminary analysis of a faceted pipe shows that a substantial increase in buckling capacity can be achieved for the same D/tD/t ratio.
