Analysis of residual stresses and distortions of a titanium alloy ring-stiffened cylindrical shell
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Keke Ge
Keke Ge, born in 1991, is an engineer at China Ship Science Research Center, Wuxi, China. His research focuses on welding residual stress and simulation.
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Yue Yu
Yue Yu, born in 1990, is an engineer at China Ship Science Research Center, Wuxi, China. His research focuses on structural mechanics.
Qiang Xu, born in 1981, is a senior engineer at China Ship Science Research Center, Wuxi, China. His research focuses on structural design and calculation.
Aifeng Zhang, born in 1978, is a research professor at China Ship Science Research Center, Wuxi, China. His research focuses on structural mechanics and design.
Shichao Feng, born in 1992, is an engineer at China Ship Science Research Center, Wuxi, China. His research focuses on welding mechanics and measurement.
Abstract
Ring-stiffened cylindrical shell is the main pressure structure of underwater carrier equipment, and the residual stress and deformation introduced by welding of ring-ribbed frame and cylinder body pose a great threat to the performance and safety of the structure. In this paper, finite element software is used to numerically simulate the residual stress and deformation caused by fillet welding. The influence of welding position, constraint tooling and post-weld heat treatment PWHT on the residual stress and deformation is analyzed systematically. The results show that the gravity has little effect on the welding residual stress and deformation, but it has a significant impact on deformation uniformity. Under the action of restraint, the welding distortion is effectively controlled, but it will lead to the increase of the overall stress level of the structure simultaneously. Heat treatment can dramatically diminish the welding residual stress at the expense of deformation, which may result in structural maladjustment.
Funding source: Natural Science Foundation of Jiangsu Province of China
Award Identifier / Grant number: BK20190152
About the authors
Keke Ge, born in 1991, is an engineer at China Ship Science Research Center, Wuxi, China. His research focuses on welding residual stress and simulation.
Yue Yu, born in 1990, is an engineer at China Ship Science Research Center, Wuxi, China. His research focuses on structural mechanics.
Qiang Xu, born in 1981, is a senior engineer at China Ship Science Research Center, Wuxi, China. His research focuses on structural design and calculation.
Aifeng Zhang, born in 1978, is a research professor at China Ship Science Research Center, Wuxi, China. His research focuses on structural mechanics and design.
Shichao Feng, born in 1992, is an engineer at China Ship Science Research Center, Wuxi, China. His research focuses on welding mechanics and measurement.
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Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: Natural Science Foundation of Jiangsu Province of China (BK20190152).
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Articles in the same Issue
- Frontmatter
- Control of the bainitic structure for a wear-resisting hard-faced rail track
- Numerical and experimental formability analysis of aluminum 3105 sandwich panels produced by continuous hot-press forming
- Online monitoring of 3D printing of steel via optical emission spectroscopy
- Effect of heat treatment on microstructure and properties of modified hypereutectic high chromium cast iron
- Characterization of Fe2B layers on ASTM A1011 steel and modeling of boron diffusion
- Corrosion behavior of 316 stainless steel, copper, and brazed joint in lithium bromide solution at different temperatures
- Effect of austempering treatment on metallurgical structure of Ce inoculated X210Cr12 cold work tool steel
- Effects of laser and electron beam welding on the mechanical properties of bake hardening sheets
- Analysis of residual stresses and distortions of a titanium alloy ring-stiffened cylindrical shell
- Multi-energy X-ray CT and data-constrained modeling of shale 3D microstructure
- Forming evolution of titanium grade2 sheets
- Effect of Cloisite 15A on the mechanical properties of an abaca-based composite
- Comparison of three methods for measuring the bending stiffness of ultrafine metal wires
- Surface preparation effects on anodization and corrosion resistance of pure titanium grade 2
