Ductile fracture of X80 pipeline steel over a wide range of stress triaxialities and Lode angles

Z Peng, H Zhao, X Li, L Yuan, T Zhu - Engineering Fracture Mechanics, 2023 - Elsevier
This study pays attention to the ductile fracture of X80 pipeline steel using both experimental
and numerical approaches. First, nineteen experimental cases are tested, consisting of the …

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 …

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 …

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 …

Acceptance levels of misalignment of welded joints under different quality categories

S Chen, S Xie, T Li, J Wang - Journal of Constructional Steel Research, 2024 - Elsevier
To enable rapid fatigue assessment of welded joints containing misalignment, the
quantitative relationships between the acceptance level of misalignment and the fatigue …

Wind buckling analysis of a large-scale open-topped steel tank with harmonic settlement-induced imperfection

B Sun, D Ma, L Gao, M He, Z Peng, X Li, W Wang - Buildings, 2022 - mdpi.com
In this study, the wind buckling capacity of an open-topped steel tank with harmonic
settlement-induced imperfection is numerically investigated. Although the single effect of the …

Fatigue assessment of cracked pipes with weld misalignment by using stress intensity factors

HS Zhao, ST Lie, Y Zhang - International Journal of Fatigue, 2018 - Elsevier
In this study, fatigue assessment of cracked pipes with weld misalignment is carried out by
using fracture mechanics approach. Two types of weld misalignment, viz., centreline offset …

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 …

Fracture analysis of load-carrying cruciform welded joint with a surface crack at weld toe

H Zhao, X Li, ST Lie - Engineering Fracture Mechanics, 2021 - Elsevier
The load-carrying cruciform welded joint usually fails in the weld root or the weld toe.
Determining the failure location in terms of the stress intensity factor (SIF) of the crack at the …

Correction on stress intensity factor of root within pipeline girth weld considering various geometric parameters

K Zhang, C Deng, D Wang, B Gong, Y Wang… - International Journal of …, 2024 - Elsevier
The study focuses on the stress intensity correction factor (M k) for internal surface cracks
located at the girth pipe root toe. To assess the impact of various parameters on M k, three …