Korean Journal of Computational Design and Engineering (한국CDE학회논문집)

Society for Computational Design and Engineering (한국CDE학회)
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A Mesh Generation Method to Estimate Welding Deformation for Shell Structures

쉘 구조물의 용접 변형량 예측을 위한 요소망 생성 방법

  • Kwon, Kiyoun (Central Research Institute, Samsung Heavy Industry)
  • 권기연 (삼성중공업 중앙연구소)
  • Received : 2016.05.15
  • Accepted : 2016.05.17
  • Published : 2016.06.01
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Abstract

In shipbuilding, hull assemblies are manufactured by welding. The thermal deformation caused by the welding produces shape deformation. Counter-deformed design methods have been used in shipyards to cope with the weld-induced deformation of ship assembles. Finite element methods (FEMs) are frequently used to estimate welding distortion in the counter-deformed design. For the estimation of welding distortion, producing uniform rectangular elements is required to enter thermal loads on the welding line and obtain accurate analysis results. In this paper, a new automatic mesh generation method is proposed for prediction of welding deformation in FEM. Meshes are constructed for test cases to demonstrate the feasibility of the proposed mesh generation method.

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References

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