Transactions of the Korean Society of Mechanical Engineers (대한기계학회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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A Study on Thermal Stress Analysis of Alumina Ceramics to Copper Brazement by Finite Element Method

알루미나 세라믹과 구리의 브레이징 접합물에 대한 열응력의 유한요소법 해석에 관한 연구

  • 전창훈 (삼성항공(주)) ;
  • 양영수 (한국과학기술원 생산공학과) ;
  • 나석주 (한국과학기술원 생산공학과)
  • Published : 1990.05.01
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Abstract

With alumina ceramics to copper brazement of cylindrical shape, the thermal stress analysis was carried out by finite element method. Elastic and plastic behaviour was considered to copper, but only elastic behaviour was considered to alumina. Also material properties of alumina and copper were considered in not constant values but variable functions dependent on temperature. The result of analysis is shown that maximum tensile longitudinal stress is occurred at perimeter of alumina side interface and maximum compressive radial and tangential stresses are occurred at center of alumina side interface. Because of bending effect, tensile raidial and tangential stresses are occurred at near bottom of alumina, far from interface.

본 연구에서는 알루미나 세라믹(Al$_{2}$O$_{3}$)재료와 순수구리를 티타늄 용자재로써 접합한 브레이징 접합물내의 냉각후 잔류응력을 유한요소법으로 사용하여 해석하였다.

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