Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Welding Residual Stress Determination and Crack Analysis in Butt-Welded Thin-Walled Plate by Finite-Element Method

유한요소법을 이용한 박판 맞대기 용접부 잔류응력 및 균열 해석

  • Received : 2009.12.09
  • Accepted : 2010.03.09
  • Published : 2010.05.01
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Abstract

In this study, we calculate the welding residual stresses for a butt-welded thin-walled plate by carrying out three-dimensional finite-element analyses. To study the effect of mechanical boundary conditions on the welding residual stresses, various boundary conditions are considered. The welding residual stresses obtained in the measurements and finite-element analyses are validated by comparing them with the welding residual stress profiles in the R6 code. The results of this study are used to analyze the influence of residual stress on the crack formation in thin-section weldments.

본 논문은 박판 맞대기 용접부 잔류응력을 3 차원 유한 요소법을 이용해서 모사하였다. 경계조건이 잔류응력에 미치는 영향을 연구하기 위해 다양한 경계조건이 고려되었으며, 예측된 용접 잔류응력은 기존 문헌의 내용과 비교 검증하였으며, 본 연구의 결과는 박판 용접부 균열에 발생하는 잔류응력의 영향을 해석하는데 사용될 것이다.

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References

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