Transactions of the Korean Society of Machine Tool Engineers (한국공작기계학회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
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A Study on the Nucleation of Fretting Fatigue Cracks at the Heterogeneity Material

이종재료에서 프레팅 피로 균열의 생성에 관한 연구

  • 고준빈 (한밭대학교 기계설계공학과) ;
  • 고충현 (한밭대 기계설계공학과) ;
  • 이기석 (충남대학교 기계공학과)
  • Published : 2005.06.01
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Abstract

Since fretting fatigue damage accumulation occurs over relatively small volumes, the role of the microstructure is quite significant in fretting fatigue analysis. The heterogeneity of discrete grains and their crystallographic orientation can be accounted for using continuum crystallographic cyclic plasticity models. Such a constitutive law used in parametric studies of contact conditions may ultimately result in more thorough understanding of realistic fretting fatigue processes. The primary focus of this study is to explore the influence of microstructure as well as the magnitude of the normal force and tangential force amplitude during the fretting fatigue process. Fretting maps representing cyclic plastic strain behaviors are also developed to shed light on the cyclic deformation mechanisms.

Keywords

References

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