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Volume 6, Issue 11 (9-2010)                   marine-engineering 2010, 6(11): 1-13 | Back to browse issues page

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Omrani Z, Mostafa Gharabaghi A R, Abedi K. **INVESTIGATION INTO DYNAMIC BUCKLE PROPAGATION VELOCITY IN MARINE PIPELINES. marine-engineering. 2010; 6 (11) :1-13
URL: http://marine-eng.ir/article-1-74-en.html
1- Civil Engineering Dept. of Sahand University of Technology
Abstract:   (12655 Views)

A pipeline is considered as shell structure so its design is based on stability concepts due to the exerted high pressure, local instability is probable to occur and so prevention of its occurrence and propagation are important subjects in its design. In this paper, dynamic buckle propagation has been modeled by 3D finite element method, results are verified with experimental tests and velocity of dynamic buckle propagation is calculated for pipes with different diameter to thickness ratios. Due to the effect of velocity in designing of marine pipelines, separate relations based on the initiation pressure are derived for the velocity of propagation and the influence of diameter to thickness ratio on the propagation velocity is studied.

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Type of Study: Research Paper | Subject: Offshore Structure
Received: 2011/01/1 | Accepted: 2013/10/19

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