Numerical analysis on the buckling behaviour of curved-crease origami pipelines

Loading...
Thumbnail Image
File version
Version of Record (VoR)
Author(s)
Guo, Z
Gattas, J
Karampour, H
Wang, S
Albermani, F
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Date
2016
Size
File type(s)
Location
License
Abstract

External pressure loadings in sub-sea pipelines can generate catastrophic structural instabilities such as propagation buckling. This failure mode is typified by a pipe collapse (snap-through phenomenon) that occurs at an initiation pressure PIand a subsequent propagation of the collapse to pipe ends that occurs at a propagation pressure PP. Recent studies have shown that pipelines with a textured geometry, corresponding to the post-buckled shape of a thin-walled cylindrical pipe under axial compression, are able to substantially increase PI, PP, and thus resistance to propagation buckling, compared to conventional smooth pipelines. This study investigates the performance of alternative post-buckled shapes observed in thin-walled pipelines under hydrostatic loading. These shapes correspond closely to a geometric family known as curved-crease origami and so a geometric definition is developed to map geometric parameters from origami to pipelines. A numerical analysis is then conducted on two curved-crease forms and comparative smooth and textured forms. Textured and smooth numerical models show good correspondence with previously reported post-buckling behaviour. One curved crease form is shown to have an increase in PPthat is 10.8% greater than the textured pipeline and 131.8% greater than smooth.

Journal Title
Conference Title
Proceedings of the Twelfth ISOPE Pacific-Asia Offshore Mechanics Symposium (PACOMS 2016)
Book Title
Edition
Volume
Issue
Thesis Type
Degree Program
School
DOI
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
© 2016 ISOPE. The attached file is reproduced here in accordance with the copyright policy of the publisher. Please refer to the conference's website for access to the definitive, published version.
Rights Statement
Item Access Status
Note
Access the data
Related item(s)
Subject
Maritime engineering
Persistent link to this record
Citation
Guo, Z; Gattas, J; Karampour, H; Wang, S; Albermani, F, Numerical analysis on the buckling behaviour of curved-crease origami pipelines, Proceedings of the Twelfth ISOPE Pacific-Asia Offshore Mechanics Symposium, PACOMS 2016, 2016, pp. 414-418