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이어 클램프의 귀 형상에 따른 피로 수명 비교 및 분석 Comparison and Analysis of Fatigue Life Based on Clamp Ear Shape

조민구, 김진수, 이훈희, 김순식, 위동열, 김지훈, 강성욱
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한국기계기술학회지 (韓國機械技術學會誌)
제27권 제5호 (2025.10)
pp.1081-1088
한국기계기술학회 (Korean Society of Mechanical Technology)
초록

Ear clamps are components used to securely fasten pipes and hoses in various industrial applications. They achieve clamping force by inducing plastic deformation at the ear region during installation, which can lead to accumulated structural damage and affect fatigue life. Moreover, the fatigue life is influenced by the design shape of the ear. Therefore, in this study, tensile and fatigue tests were conducted on two types of ear clamps with different ear geometries. Finite element analysis (FEA) was performed to obtain the stress distribution around the ear region, and these results were correlated with the experimentally obtained fatigue life. Based on this correlation, an S-N curve for simulation-based fatigue life estimation was established. This approach confirms the possibility of predicting the fatigue life of ear clamps with modified geometries using only finite element analysis, without the need for repeated fatigue testing.

목차
Abstract
1. 서 론
2. 이어 클램프 인장 시험
3. 이어 클램프 피로 시험
4. 이어 클램프 공정 성형 해석
    4.1 성형 해석 모 델
    4.2 성형 해석 조건
    4.3 성형 해석 결과
5. 이어 클램프 피로 해석
    5.1 피로 해석 모 델
    5.2 피로 해석 조건
    5.3 피로 해석 조건
    5.4 실험과 해석 기반 S-N Curve 구축
6. 결 론
후 기
References
저자
  • 조민구(School of Mechanical Engineering, Pusan National University, Jinju center, Dongnam Technology Application Division, Korea Institute of Industrial Technology) | Mingoo Cho
  • 김진수(Jinju center, Dongnam Technology Application Division, Korea Institute of Industrial Technology) | Jinsu Gim
  • 이훈희(Jinju center, Dongnam Technology Application Division, Korea Institute of Industrial Technology) | Hoon-Hee Lee
  • 김지훈(School of Mechanical Engineering, Pusan National University) | Ji Hoon Kim Corresponding author
  • 김순식(Dept. of R&D, SHINWOOSHIN) | Soon-Shik Kim
  • 위동열(Regional Business Division, Daegu Gyeongbuk Center, Korea Testing & Research Institute) | Dong-Yeol Wi
  • 강성욱(Dept. of Smart Ocean Mobility Engineering, Changwon National University) | Sungwook Kang Corresponding author