Transactions of the Korean Society of Pressure Vessels and Piping (한국압력기기공학회 논문집)

Korean Society of Pressure Vessels and Piping (한국압력기기공학회)
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Moving Temperature Profile Method for Efficient Three-Dimensional Finite Element Welding Residual Stress Analysis for Large Structures

대형구조물의 효율적 3차원 용접잔류응력해석을 위한 새로운 이동 온도 프로파일 방법

  • Cheol Ho Kim ;
  • Jae Min Gim ;
  • Yun Jae Kim
  • 김철호 (고려대학교 기계공학부) ;
  • 김재민 (삼성SDI(주)) ;
  • 김윤재 (고려대학교 기계공학부)
  • Received : 2023.10.19
  • Accepted : 2023.12.12
  • Published : 2023.12.30
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Abstract

For three-dimensional finite element welding residual stress simulation, several methods are available. Two widely used methods are the moving heat source model using heat flux and the temperature boundary condition model using the temperature profile of the welded beads. However, each model has pros and cons in terms of calculation times and difficulties in determining welding parameters. In this paper, a new method using the moving temperature profile model is proposed to perform efficiently 3-D FE welding residual stress analysis for large structures. Comparison with existing experimental residual stress measurement data of two-pass welding pipe and SNL(Sandia National Laboratories) mock-up canister shows the accuracy and efficiency of the proposed method.

Keywords

Acknowledgement

이 성과는 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임(NRF-2019M2D2A2048296)

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