Article
Engineering, Civil
Yi Shuai, Xinhua Wang, Junqiang Wang, Heng-Gang Yin, Y. Frank Cheng
Summary: The study showed that the type-B sleeve repair method effectively restores the pressure-bearing capacity of the corroded X80 steel pipeline under internal pressure, with burst failures typically occurring far from the sleeve and defect region. The depth of the corrosion defect significantly affects repair effectiveness, while the length and width of the defect have limited impact on the stress level of the repaired pipeline.
THIN-WALLED STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Jiaqi Chen, Hao Wang, Milad Salemi, Perumalsamy N. Balaguru
Summary: This paper evaluates the mechanical behavior of damaged steel pipelines with CFRP repair using FE analysis. The study shows that increasing CFRP thickness can reduce stress, and the reinforcement of the CFRP can be enhanced by using infill material with a higher elastic modulus.
Article
Construction & Building Technology
Linlin Xie, Xinyu Wang, Cantian Yang, Yonghui Jiang, Qianmin Liu, Qisong Miao, Xi Chen
Summary: This research addresses the insufficient grouting problem of grouted sleeve connections in precast concrete structures. A defect-detectable and repairable half-grouted sleeve (DDRHGS) was developed, and a quantitative detection and repair method was recommended. The feasibility and reliability of the DDRHGS were validated through laboratory tests and field work.
CASE STUDIES IN CONSTRUCTION MATERIALS
(2022)
Article
Construction & Building Technology
Pu Zhang, Jixing Yu, Yuyang Pang, Jiajun Fan, Hui Guo, Zuanfeng Pan
Summary: This paper conducted an experimental study on the mechanical properties of fiber-reinforced grouting materials and grouted sleeve joints, showing that the incorporation of fibers had different effects on the mechanical properties of the grouting material. The use of fiber-reinforced grouting materials could significantly improve the mechanical properties and residual bond strength of sleeve joints.
JOURNAL OF BUILDING ENGINEERING
(2021)
Article
Energy & Fuels
Pranjali Sharma, Hafijul Hossain Sardar, Swati Neogi
Summary: This study focuses on the failure of Type-4 composite cylinders caused by thermal degradation. Finite element analysis is used to predict the ultimate hoop stress of composite rings, and models for various tests are developed and experimentally validated.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Mechanics
Yunlong Ma, Zhenyi Liu, Mingzhi Li, Yao Zhao, Peng Cai
Summary: In this study, a magnetorheological material with curing and bonding abilities was prepared by utilizing surface modified carbonyl iron powder and epoxy resin, which can be combined with strong magnet as a rapid repair technology for damaged pressure vessels and pipelines. The structure and reaction process of the material were analyzed using various techniques, and mechanical experiments were conducted to explore its mechanical properties and repair effects. The repair mechanism was also explained through numerical simulation based on a simplified simulation model.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Mechanical
Md Shamsuddoha, Allan Manalo, Thiru Aravinthan, Md Mainul Islam, Luke Djukic
Summary: The study evaluated the performance of a grouted fibre-reinforced composite repair system for steel pipelines with different levels of metal loss through finite element analysis, showing that thicker sleeves and higher tensile strength grout provide higher pipe capacity. A high modulus grout allows for more effective load transfer from steel to sleeve in the repair system.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Mechanics
R. A. J. Weerts, O. Cousigne, K. Kunze, M. G. D. Geers, J. J. C. Remmers
Summary: A combined experimental-numerical method is proposed to predict the mechanical behavior of composite overwrapped pressure vessels under impact conditions. Material characterization tests are conducted to determine key material parameters, taking into account manufacturing defects. The model is optimized by comparison with quasi-static indentation tests, accurately predicting the mechanical behavior of pressure vessels under both quasi-static and impact loads.
COMPOSITE STRUCTURES
(2021)
Article
Engineering, Civil
Goran Vukelic, Goran Vizentin
Summary: This study investigated the failure of two steel pressure vessels during hydrostatic test at a pressure lower than test pressure. It was found that pitting corrosion at the bottom part of the vessel was the cause of cracks, and the possibility of retaining functionality using composite patch repair procedure was assessed and confirmed by experimental investigation. Recommendations were provided to prevent future failures of similar pressure vessels.
THIN-WALLED STRUCTURES
(2021)
Article
Engineering, Multidisciplinary
Lisong Fu, Shujie Zhang, Guoquan Cao, Ziwei Zhang, Rui Wang
Summary: This paper discusses the use of the inversion method to line the inner wall of the pipeline with tubular textile composite material, achieving structural or semi-structural repair in the form of pipe in pipe. The study analyzes the pressure during inversion and fluid transportation, and uses theories such as thin-walled cylinder theory and Hooke's law to analyze the stress of composite materials under internal pressure. Strength calculation equations are established for structural or semi-structural repair. The results show that strength design depends on the stress generated by working internal pressure in structural repair, and on inversion pressure in semi-structural repair.
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
(2022)
Review
Chemistry, Physical
Domenico Magisano, Francesco Liguori, Antonio Madeo, Leonardo Leonetti, Giovanni Garcea
Summary: Optimizing the response of composite thin-walled structures prone to buckling is crucial for engineering applications, and recent computational developments have shown how to transform unstable structures into stable ones. Various aspects such as mechanical models, material parametrization, solution methods, and structural optimization algorithms are discussed, with a numerical example provided to illustrate optimal material design.
Article
Chemistry, Physical
Hongjie Zhang, Tao Han, Yong Wang, Qian Wu
Summary: The study conducted a comprehensive analysis of the temperature, microstructure, and stress distribution in the in-service repair welding of the X80 pipeline using TMM simulations and verification experiments. The findings highlight the significant impact of the sleeve material strength and fillet weld size on the quality of welding.
Article
Chemistry, Physical
Taner Coskun, Omer Sinan Sahin
Summary: The aim of this study was to determine geodesic dome trajectories of composite overwrapped pressure vessels and investigate the impact of dome profiles on structural performances. Geodesic paths for various dimensionless polar opening radii were determined, and filament winding angles were calculated. Finite element analysis was conducted to obtain mechanical properties. The study concluded that dome profile and filament winding angle depend greatly on the polar opening radii. The optimum pressure vessel had a dimensionless polar opening radii of 0.6, and it exhibited minimum equivalent stress, strain, deformation, and inverse reverse factors.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Marine
Ke-Chun Shen, Lei-Lei Jiang, Zhao-Qi Yang, Guang Pan
Summary: In this study, an analytical solution is proposed for the buckling problem of composite cylindrical shells subjected to hydrostatic pressure. The solution is derived by solving the differential equations using the Galerkin method and approximating the displacements and deflections of the shell. An analytical formula is derived based on this solution to predict the critical buckling pressure and buckling mode of composite cylindrical shells. The proposed approach is validated through finite element analysis and experimental tests, demonstrating its efficiency and accuracy in predicting the critical buckling pressure and buckling mode.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Engineering, Multidisciplinary
Asieh Atarodi-Kashani, Shahram Delfani, Maziar Khademi, Majid Shafaie
Summary: This research experimentally measured the long-term behavior of PEX multi-layer pipes under different diameters and welding types. The stress distribution of the pipe layers was analytically calculated, and the tolerable pressure for each layer was defined using the presented equations. The results showed that the Aluminum layer bears the majority of the pressure, while the PE-X outer and inner layers bear less pressure.
INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING
(2022)
Article
Materials Science, Multidisciplinary
Luke P. Djukic, Wei Siang Sum, K. H. Leong, Wayne D. Hillier, Timothy W. Eccleshall, Alan Y. L. Leong
MATERIALS & DESIGN
(2015)
Article
Materials Science, Composites
W. S. Sum, K. H. Leong, L. P. Djukic, T. K. T. Nguyen, A. Y. L. Leong, P. J. Falzon
PLASTICS RUBBER AND COMPOSITES
(2016)
Article
Materials Science, Composites
W. S. Sum, K. H. Leong
PLASTICS RUBBER AND COMPOSITES
(2020)
Article
Engineering, Mechanical
J. Ding, W. S. Sum, R. Sabesan, S. B. Leen, I. R. McColl, E. J. Williams
INTERNATIONAL JOURNAL OF FATIGUE
(2007)
Article
Engineering, Mechanical
WS Sum, SB Leen, EJ Williams, R Sabesan, IR McColl
JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN
(2005)
Article
Engineering, Mechanical
WS Sum, EJ Williams, SB Leen
INTERNATIONAL JOURNAL OF FATIGUE
(2005)
