Quasi-static and dynamic indentation of offshore pipelines with and without multi-layer polymeric coating
Offshore pipelines are occasionally subjected to accidental impact loads from trawl gear or
anchors, which may damage the pipe. In this study, a series of indentation experiments …
anchors, which may damage the pipe. In this study, a series of indentation experiments …
Fatigue of X65 steel in the sour corrosive environment—A novel experimentation and analysis method for predicting fatigue crack initiation life from corrosion pits
F Farhad, D Smyth‐Boyle… - Fatigue & Fracture of …, 2021 - Wiley Online Library
Oil and gas pipelines manufactured from API‐5L Grade X65 steel are generally subjected to
cyclic loading and their internal surfaces are frequently exposed to corrosive sour fluids …
cyclic loading and their internal surfaces are frequently exposed to corrosive sour fluids …
Bending induced wrinkling and creasing in axially crushed aluminum tubes
JA Haley, S Kyriakides - International Journal of Solids and Structures, 2020 - Elsevier
Concertina folding of tubes used for impact mitigation bends the tube section to tight
curvatures that can lead to failures on the tensioned side of the folds. This paper reports …
curvatures that can lead to failures on the tensioned side of the folds. This paper reports …
[HTML][HTML] Ductile failure by strain localisation: A computational study of materials and structures subjected to highly non-proportional load histories
Ductile failure by the onset of strain localisation after non-proportional load paths is
investigated herein by using the imperfection version of the strain localisation theory. A …
investigated herein by using the imperfection version of the strain localisation theory. A …
Mechanical response of a lined pipe under dynamic impact
An experimental and numerical investigation on the mechanical response of a lined pipe
(compound pipe) under a dynamic impact is presented. The influence of the impact energy …
(compound pipe) under a dynamic impact is presented. The influence of the impact energy …
Combined three-point bending and axial tension of pressurised and unpressurised X65 offshore steel pipes–Experiments and simulations
Subsea pipelines are occasionally struck and hooked by objects such as anchors or trawl
gear. The initial denting, followed by potential hooking and displacement of the pipeline …
gear. The initial denting, followed by potential hooking and displacement of the pipeline …
Laboratory apparatus for in‐situ corrosion fatigue testing and characterisation of fatigue cracks using X‐ray micro‐computed tomography
This paper presents the design, construction, and assembly of laboratory apparatus to
undertake in‐situ corrosion fatigue tests in a sour corrosive environment under uniaxial …
undertake in‐situ corrosion fatigue tests in a sour corrosive environment under uniaxial …
Using unit cell simulations to investigate fracture due to compression–tension loading
Experiments regarding impact against X65 steel pipes show that fracture typically arises in
areas subjected to large compressive strains before tension. Fracture surfaces from these …
areas subjected to large compressive strains before tension. Fracture surfaces from these …
[HTML][HTML] Finite element analysis of porous polymer coated pipelines subjected to impact
Subsea steel pipelines are often coated with external polymer coatings. While primarily
applied for corrosion protection and thermal insulation, such coatings have been shown to …
applied for corrosion protection and thermal insulation, such coatings have been shown to …
[HTML][HTML] Fracture mechanisms in largely strained solids due to surface instabilities
The effect of self-contacting surface defects generated by largely compressing metals on the
ductile-to-brittle transition observed in metallic structures is investigated. In order to analyse …
ductile-to-brittle transition observed in metallic structures is investigated. In order to analyse …