Experimental and numerical studies on collapse of subsea pipelines with interacting corrosion defects

H Wu, H Zhao, X Li, X Feng, Y Chen - Ocean Engineering, 2022 - Elsevier
The pipeline is prone to collapse under the combined external pressure and multiple
corrosion defects. Experiments of the full-scale pipelines with longitudinally …

Strain-based fracture response of X80 steel pipe welded girth based on constraint-modified JR curves: from SENT specimen to full-scale pipe

Z Li, B Gong, G Lacidogna, C Deng, D Wang - Engineering Fracture …, 2021 - Elsevier
In the study, a methodology is proposed based on the SENT experiments and crack-tip
constraint theory to determine the tensile strain capacity of a flawed pipe welded girth …

Buckling response of subsea pipeline with irregular corrosion defect under external pressure

H Wu, H Zhao, Y Chen, X Li, X Feng - Ocean Engineering, 2023 - Elsevier
The subsea pipeline is prone to corrosion due to the combined influence of a complex
environment and internal fluid. The corrosion defect results in the local thinning of the wall …

Hydrodynamic responses of a barge-type floating offshore wind turbine integrated with an aquaculture cage

Y Zhai, H Zhao, X Li, W Shi - Journal of Marine Science and Engineering, 2022 - mdpi.com
The dynamic responses of a new structure combining a barge-type floating offshore wind
turbine and an aquaculture cage is investigated numerically. First, a 5 MW barge-type …

Stress state at the root of variable-wall-thickness pipeline welded joint

B Guo, Y Zhu, L Dai, C Deng, H Peng, D Wang… - International Journal of …, 2022 - Elsevier
In this study, root notch defects in the application of variable wall thickness designs of
pipeline welded joints were analyzed. Considering variable-wall-thickness pipelines …

Influence of partial rust layer on the passivation and chloride-induced corrosion of Q235b steel in the carbonated simulated concrete pore solution

K Li, X Li, Y Zhao, K Wang, S Song, W Jin, D Xia, Y Xu… - Metals, 2022 - mdpi.com
A partial pre-rusted wire beam electrode (WBE) was designed to study the influence of the
rust layer on rebar corrosion in the carbonated simulated concrete pore solution (SCPS) …

A ductile tearing assessment diagram for cracked circular-hollow-section joints under reversed loadings

T Liu, X Qian, W Wang, Y Chen - Marine Structures, 2023 - Elsevier
This paper proposes a ductile tearing assessment diagram (TAD) to predict the load
resistance to the crack extension relationship during the stable tearing process of the …

Buckling analysis of corroded pipelines under combined axial force and external pressure

C Feng, H Wu, X Li - Metals, 2022 - mdpi.com
Affected by a complex environment, corrosion is a common defect in steel pipelines.
Moreover, steel pipelines are subjected to large axial forces during their installation and …

Experimental and numerical study on the ductile fracture response of X65 girth-welded joint made of Inconel 625 alloy

DFB Sarzosa, M Paredes, R Savioli, C Ruggieri… - Theoretical and Applied …, 2022 - Elsevier
This work presents an experimental/numerical study characterizing the ductile fracture
response of a pipeline girth weld of a corrosion-resistant alloy, Inconel 625. The welded joint …

Ductile Fracture Prediction of X80 Pipeline Steel Using Void Growth Model

C Feng, Z Peng, X Li, S Bao, X Jiang - Metals, 2022 - mdpi.com
In this study, the Void Growth Model (VGM) is employed to predict the ductile fracture of X80
pipeline steel. The X80 pipeline tends to be applied in challenging scenarios, such as …