Stress Comparison on Welded Connection between Detail FE Model and Classical Calculation

계산 방법론에 따른 용접부 응력 평가 및 비교(FE 상세 모델 vs 수 계산)

  • 송문성 (현대로템 주식회사, 차체개발팀) ;
  • 정상웅 (현대로템 주식회사, 차체개발팀)
  • Published : 2010.06.10

Abstract

According to development of method and device of Finite Element Analysis, the strength of welded joint is demonstrated by Finite Element Analysis not classical calculations. On the FEA, all of the joints for carbody are assumed to be ideal connections and the yield stress of welded joint is assumed to be the same to base metal. On these assumption, FEA is appropriate to evaluate the overall stability and strength of whole carbody. The classical calculation is appropriate to evaluate strength of specific welded joint and to determine the weld method and properties. Some project request strength calculation of the specific welded joints in addition to FEA, because of the demonstration of stability. The objective of this paper is the check of the consistency of the FEA result for the welded joints by the stress comparison between Detailed FE Model and classical calculation and the evaluation of the reliability of FEA result.

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