Theoretical Temperature Analysis for 88316 Piping Weld

SS316강 배관 용접부에 대한 이론적 온도해석

  • 김종성 (한전기술(주) 전력기술개발연구소) ;
  • 이승건 (한전기술(주) 전력기술개발연구소) ;
  • 진태은 (한전기술(주) 전력기술개발연구소) ;
  • 권순만 (영남대학교 기계공학부)
  • Published : 2003.10.01


In this paper, the arc beam is considered as a moving disc heat source with a pseudo-Gaussian distribution of heat intensity. The solution for temperature distribution on welds is derived by using the image heat source method and the superposition method. It is general solution in that it can determine the temperature-rise distribution in and around the arc beam heat source, as well as the width and depth of the melt pool (MP) and the heat-affected zone (HAZ) in welding short lengths, where quasi-stationary conditions may not have been established. As a comparative study, the results of this analytical approach has been compared with that of the finite-element modeling. As a result, The theoretical analysis presented here has shown good consistency and is more time/cost-effective method compared with FEM.


Arc Welding;Temperature Analysis;Image Heat Source Method;Superposition Method;Finite Element Method


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