ZHANG Jiu-ju, DUAN Meng-lan, MA Jian-min, HU Xian-wei. Study on Ovalization of Submarine Pipe During Deep Water Reel-Lay[J]. Applied Mathematics and Mechanics, 2013, 34(6): 552-563. doi: 10.3879/j.issn.1000-0887.2013.06.002
 Citation: ZHANG Jiu-ju, DUAN Meng-lan, MA Jian-min, HU Xian-wei. Study on Ovalization of Submarine Pipe During Deep Water Reel-Lay[J]. Applied Mathematics and Mechanics, 2013, 34(6): 552-563.

# Study on Ovalization of Submarine Pipe During Deep Water Reel-Lay

##### doi: 10.3879/j.issn.1000-0887.2013.06.002
• Rev Recd Date: 2013-04-17
• Publish Date: 2013-06-15
• During the reel-lay installation in deep water, large deformation occurs on the pipeline, leading to ovalization, instability or even local buckling. Ovality theory was established based on strain-energy method and Ritz method. Also, finite element analysis was employed by software, ABAQUS. The results obtained from the former procedures were compared with those from modified Brazier and modified von Kármán, serving as a good verification of the former solution. In addition, intact and defective pipelines are separately simulated by ABAQUS, suggesting that ovality is subject to pipelinediameter, wallthickness, initial bending curvature and bending curvature, et al. The law between ovality and geometrical parameters is further obtained. The above research of ovality is of certain interest to reel-lay installation.
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