Fin-Tube 이종재의 고주파 압접 접합계면 및 계면균열 응력해석

The Analysis of Stress Behavior in welded interface and interface crack of High Frequency Pressure welding of Dissimilar materials for Fin-Tube

  • 김도형 (경희대학교 대학원 기계공학과) ;
  • 이동진 (경희대학교 대학원 기계공학과) ;
  • 오환섭 (경희대학교 기계·산업시스템 공학부)
  • 발행 : 2000.10.01

초록

In this study, geometric shape and crack in welded interface of the air cooled heat exchanger Fin-Tube of Dissimilar Meterials was analysed. The object of study is to understand the behavior of Stress Intensity Factor for fin length, flash thickness, flash length, symmetric and asymmetric cracks of comming from the manufacturing process. Stress Intensity Factor was analysed by BEM. Kelvin's solution was used as a fundamental solution in BEM analysis and stress extrapolation method was used to determine Stress Intensity Factor.

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