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Journal of KWJS 2011;29(3):70-75.
Published online July 7, 2011.
FPSO Moon Pool 구조에서 발생되는 용접 잔류응력에 관한 연구
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A Study on the Weld-induced Residual Stress Analysis at FPSO Moon Pool Structure
Joo-Sung Lee, Sung-Woo Han, Sang-Hoon Lee, Sang-Il Kim
Abstract
  Welding process generates distortion and residual stress in the weldment due to rapid heating and cooling. Welding distortion and residual stress in the welded structure result in many troubles such as dimensional inaccuracies in assembling and safety problem during service. The accurate prediction of welding residual stress is thus very important to improve the quality of weldment and find the way to reduce itself. This paper presents the simulation of welding-induced residual stress analysis to examine the cause of cracking in the SUS-overlay welding specimen at FPSO Moon Pool structure.
Key Words: Residual stress, Numerical analysis
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