Results 1 to 10 of about 75,244 (265)

Numerical Study on the Effect of Deposit Layer on the Minimum Wall Thickness of Boiler Water Tube under Different Operating Conditions

open access: yesApplied Sciences, 2022
Water wall tube temperature is a major parameter in the steam generator design which has a significant role in keeping the steam generator available. Thus, knowing the tube average temperature in different operating conditions is very important to avoid ...
Ahmed S. Aljohani   +3 more
doaj   +3 more sources

Influence of the wall thickness value on the cross wall thickness deviation of tubes rolled on the tube rolling plant with the continuous mill [PDF]

open access: yesЖурнал інженерних наук, 2018
The high requirements as to accuracy of the wall thickness are due not only to necessity of assuring the reliability and serviceability of equipment, but also to the trend towards the continuous decrease of metal capacity.
Pilipenko S. V.   +2 more
doaj   +3 more sources

Electromagnetic Force Distribution and Wall Thickness Reduction of Three-Coil Electromagnetic Tube Bulging With Axial Compression

open access: yesIEEE Access, 2020
In the conventional electromagnetic tube expansion, tube wall thickness tends to decrease significantly while the workpiece is expanded. This paper is aimed at introducing a new technique using three-coil electromagnetic tube bulging with axial ...
Li Qiu   +9 more
doaj   +3 more sources

Simulation research on corrosion and thinning characteristics of water wall tubes based on electric field array

open access: yesEnergy Reports, 2023
During service, the water wall tube will inevitably corrode due to various corrosive gases such as SO2, HCl, H2S, etc. To prevent the occurrence of tube burst accidents caused by thinning and income-pressure resistance of the water wall tube, it is ...
Xiaoying Hu   +6 more
doaj   +1 more source

Eccentric compression behavior of FRP-concrete-steel tubular composite columns

open access: yesAdvances in Mechanical Engineering, 2021
FRP-concrete-steel tubular (FCS) composite columns are composed of the external tube, the internal steel tube, and the concrete between both tubes. They have been attracting the attention of many researchers due to their high ductility, lightweight ...
Ni Zhang   +3 more
doaj   +1 more source

Analysis and Evaluation on the Foreign Objects on the Steam Generator Tube Sheet of a Nuclear Power Plant [PDF]

open access: yesCailiao Baohu, 2022
The residual foreign objects on the steam generator tube sheet of a nuclear power plant were analyzed and evaluated by ARCHARD wear physical model and impact energy calculation method for collision analysis.Results showed that if the conservative ...
WANG Hao, WANG Chen, GAO Jun, WEI Shenghui, ZHU Zhibin
doaj   +1 more source

General tube law for collapsible thin and thick-wall tubes [PDF]

open access: yesJournal of Biomechanics, 2014
Modeling the complex deformations of cylindrical tubes under external pressure is of interest in engineering and physiological applications. The highly non-linear post-buckling behavior of cross-section of the tube during collapse attracted researchers for years. Major efforts were concentrated on studying the behavior of thin-wall tubes. Unfortunately,
Pavel, Kozlovsky   +3 more
openaire   +2 more sources

Analysis of the wall thickness distortion in tube hydro-forging

open access: yesThe International Journal of Advanced Manufacturing Technology, 2022
Abstract The tensile deformation is the most common forming principle in the sheet forming process, but there is a new tube forming process - tube hydro-forging has been developed based on the principle of compression deformation. In addition to the instabilities problem, a new surface defect - thickness distortion was found in the compression ...
Gang Chen   +3 more
openaire   +1 more source

Tube Electromagnetic Free Bulging Based on Internal Negative-External Positive Three-Coil System

open access: yesIEEE Access, 2020
Controlling the direction and profile of the electromagnetic force (EMF) is a key of improving the tube axial-uniformity and wall thickness during the electromagnetic forming process.
Li Qiu   +6 more
doaj   +1 more source

Axial Compressive Behavior of Glass Fiber-Reinforced Hollow Concrete Columns

open access: yesAdvances in Materials Science and Engineering, 2022
To investigate the axial compression behavior of glass fiber-reinforced polymer tubes filled with reinforced hollow concrete members, the finite element model was established in ABAQUS.
Xiangyang Jian   +3 more
doaj   +1 more source

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