손상저감을 위한 접촉부형상의 고찰

A Study on the Contact Shape for Failure Mitigation

  • 김형규 (한국원자력연구소 경수로연료개발부) ;
  • 윤경호 (한국원자력연구소 경수로연료개발부) ;
  • 강흥석 (한국원자력연구소 경수로연료개발부) ;
  • 송기남 (한국원자력연구소 경수로연료개발부) ;
  • 이영호 (한국원자력연구소 경수로연료개발부)
  • 발행 : 2003.11.05

초록

Method for contact failure mitigation is studied in this paper. The focus is laid on the contact shape that eventually influences the internal stresses. Contact mechanics is consulted within the frame of plane problem. Hertzian contact, rounded punch and uniform traction profiles are considered. Frictional as well as frictionless contact is also considered. As results, the higher traction profile induced by the rounded punch reveals the greatest among the considered shapes. Therefore, it is suggested to increase the edge radius as large as possible if a contact body of punch shape needs to be designed. It is also found that uniform traction cannot always provide the solution of contact failure mitigation.

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