On the Contact Behavior Analysis of the O-ring Depending on the Contact Surface Profiles

접촉면 형상에 따른 O-링의 접촉거동해석에 관한 연구

  • 김청균 (홍익대학교 기계/시스템디자인공학과)
  • Published : 2005.02.01


In this paper, the contact stress and strain distributions in elastomer O-ring seals have been analyzed using a non-linear finite element method. The stress behavior of PTFE materials is assumed as Odgen model because the sealing clearance between the flange and the surface of the O-ring is not small and the sealing pressure of working fluids covers from the atmospheric pressure to high pressure of 15MPa. The contact normal force and stress in wavy O-rings in which is developed for this analysis are uniformly distributed along the flange and the wall of the rectangular groove. And the normal sealing forces are also kept high compared to other contact sealing models such as the conventional O-ring and X-ring, Thus, the FEM computed results indicate that the sealing characteristic of wavy O-rings is food compared with other contact seals.


Contact Stress;FEM;Odgen Model;O-ring;Sealing;Strain


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