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A Characteristic Study of Low Cycle Fatigue for Rolled STS 304 Steel

STS 304 압연강의 저주기 피로특성에 관한 연구

  • Kim, C.H. (Department of Nano Fusion Technology, Pusan National University) ;
  • Park, Y.M. (Department of Nano Fusion Technology, Pusan National University) ;
  • Bae, M.K. (Department of Nano Fusion Technology, Pusan National University) ;
  • Kim, H.S. (Department of Nanomechatronics Engineering, Pusan National University) ;
  • Kim, T.G. (Department of Nanomechatronics Engineering, Pusan National University)
  • 김치환 (부산대학교 나노융합기술학과) ;
  • 박영민 (부산대학교 나노융합기술학과) ;
  • 배문기 (부산대학교 나노융합기술학과) ;
  • 김혜성 (부산대학교 나노메카트로닉스공학과) ;
  • 김태규 (부산대학교 나노메카트로닉스공학과)
  • Received : 2018.01.11
  • Accepted : 2018.01.23
  • Published : 2018.01.30

Abstract

In this study, low cyclic fatigue test was carried out at room temperature condition for rolled STS304 steel. The results of this study show that rolled STS304 steel has excellent static tensile strength and fatigue characteristics. The relationship between plastic strain range and fatigue life was examined using the triangular wave in order to predict the low cycle fatigue life of rolled STS304 steel by Coffin-Manson equation. Cyclic behavior of rolled STS304 steel was characterized by cyclic hardening with increasing number of cycle through the Hysteresis loop analysis and cyclic response of maximum stress versus number of cycles. It is found that the plastic deformation energy consumed per cycle is reduced by calculating the area of the hysteresis loop.

Keywords

References

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