Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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A Study of Fatigue Analysis for the Turntable Fixing Bolts Subjected to Mixed Load

혼합하중을 받는 선회대 고정볼트의 피로분석에 관한 연구

  • Choi, Dong-Hoon (Korea Occupational Safety and Health Agency) ;
  • Lee, Do-Nam (School of Mechanical Engineering, Chungnam National University) ;
  • Kim, Jae-Hoon (School of Mechanical Engineering, Chungnam National University)
  • 최동훈 (한국산업안전보건공단) ;
  • 이도남 (충남대학교 기계공학부) ;
  • 김재훈 (충남대학교 기계공학부)
  • Received : 2022.04.20
  • Accepted : 2022.10.06
  • Published : 2022.10.31
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Abstract

In this study, to confirm the effects of the mixed load of normal and shear forces acting on a fixing bolt, fatigue design criteria were developed by varying the loading angle and conducting tensile and fatigue tests. After evaluating and comparing the test results under different loading angles, the evaluation criteria were selected. These evaluation criteria were then applied to develop the design criteria. An Arcan fixture was designed and manufactured to simultaneously apply a mixed load of normal and shear forces to the fixing bolt of a turntable, and a fatigue test was conducted. S-N diagrams for various loading angles were obtained, and a 1% P-S-N diagram of failure probability was determined using statistical processing techniques. Our results show that failures of the fixing bolt can be prevented using these diagrams as a basis for developing fatigue design criteria.

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References

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