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X65 steel pipes subjected to combined stretching and bending

Authors: Kristoffersen, Martin; Borvik, Tore; Langseth, Magnus; Hopperstad, Odd Sture;

X65 steel pipes subjected to combined stretching and bending

Abstract

Subsea pipelines are occasionally struck and hooked by objects such as anchors or trawl gear. The initial denting followed by a potential hooking and displacement of the pipeline, with a simultaneous increase in tensile axial forces due to this displacement, cause a complex load and deformation history. This study examines the effect of applying three different axial loads (zero, constant, and linearly increasing) to a pipe while simultaneously deforming it transversely. These three tests were repeated with an internal pressure of 100 bar, and all tests were recreated numerically by finite element simulations, the results of which were in good agreement with the experiments. Adding an axial load increased the pipe’s resistance to bending in terms of force-displacement, and the same can be said of including internal pressure.

Country
Spain
Related Organizations
Keywords

Finite element method, Marine engineering, Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits, material testing, pipe impact, numerical simulation

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green