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Classification of Steel
Published in Vladimir B. Ginzburg, Metallurgical Design of Flat Rolled Steels, 2020
Steel tubular products can be generally classified into the two broad classifications of tubes or pipes. Although the use of the terms pipe and tube is not always consistent, the term pipe is commonly used to describe cylindrical tubular products made to standard combinations of outside diameter and wall thickness. Pipe is also distinguished from tubing by the fact that it is produced in relatively few sizes and, therefore, in comparatively large quantities. Pipes can be divided into the following named use groups [3]: Standard pipeSpecial pipeLine pipeOil country tubular goodsWater well pipePressure pipe. Tubes can also be divided into the following named use groups: Pressure tubesStructural tubingMechanical tubing.
The latest development of reinforcement techniques on tubular joints
Published in C. Guedes Soares, Y. Garbatov, Progress in the Analysis and Design of Marine Structures, 2017
ABSTRACT: To date, tubular joint has been widely applied on various engineering structures, ranging from offshore platform jackets, truss-type structures of civil engineering, bridges, ship loaders to crane structures. Since different load cases transferring between tubular members could generate asymmetrical and high stress concentration, fatigue damage or buckling destruction may first occur at tubular joint. In this regard, tubular joints are recognized as the most crucial component in tubular structures in order to maintain sufficient safety and durability. There are ways to reinforce tubular joints, including internal ring-stiffener, doubler/collar plate, grouted clamp and FRP reinforcement. In this paper, mechanical performance of tubular joints are mainly focused, a review of the above-mentioned reinforcement methods is presented, with a brief summary of their advantages and limitations. Furthermore, this paper also provides discussion of research insufficiency of Carbon Fiber Reinforced Polymer (CFRP) reinforcement and some possible further investigation research spots.
Finite element modeling and experimental validation of rectangular pin buckle arrestors for offshore pipelines
Published in Mechanics Based Design of Structures and Machines, 2022
N. Ramachandra Rao, Vadivuchezhian Kaliveeran
Offshore pipelines are widely used due to their weight to strength ratio and material properties. Structural behavior and performance of these pipelines is influenced by buckling phenomenon in offshore environment (Ghazijahani, Jiao, and Holloway 2015). Tubular structures are used in several structural elements, which are used in various offshore applications. These structures are subjected to external pressure and wave forces in the offshore oil industry (Ghanbari Ghazijahani, Jiao, and Holloway 2014). Offshore pipelines have been considered as effective means of transporting Oil and Natural Gas because of their structural capability and cost effectiveness (Chakrabarthy 2005).