Browse > Article
http://dx.doi.org/10.5916/jkosme.2012.36.1.85

Research on Fafigue Life Prediction of Muffler with Weld-zone Shape  

Kim, Jong-Yun (부산대학교 기계공학부)
Kang, Sung-Su (부산대학교 기계공학부)
Kim, Gug-Yong (부산대학교 기계공학부)
Park, Soon-Cheol (현대자동차)
Kim, Chung-Kwan (세종공업)
Abstract
In this study, the geometry of the weld is used to develop the process of fatigue life prediction. For the development of fatigue life prediction process, bending fatigue test of muffler is conducted to obtain M(Moment)-N(Fatigue life) diagram. Modeling the geometry of the weld which is failed is performed to conduct static load analysis and analysis results are used to calculate the stress concentration factor. The stress concentration factor is used to get the fatigue notch factor and this was based on the fatigue life prediction. As a result of the comparison of test values and predicted values, predicted values are verified.
Keywords
Muffler; Weld-zone; Fatigue life prediction; Stress concentration factor; Fatigue notch factor;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 박세종, 박경성, 서호철, "자동차 배기시스템의 피로내구 해석 및 평가", 한국자동차공학회, 춘계학술대회논문집, pp. 886-891, 2004.
2 김강민, "자동차 배기계 SUS Flange-Pipe 서브어셈블리의 피로강도 평가", 울산대학교 석사학위논문, 2007.
3 조상명, "기계系의 신뢰성과 部材의 피로파괴", 한국마린엔지니어링학회지, vol. 12, no. 4, pp. 215-225, 1988.
4 손일선, 배동호, "점용접이음재의 피로수명 예측에 관한 확률적 검토(I) : Weibull 확률 분포 함수 적용", 한국자동차공학회논문집, vol. 7, no. 6, pp. 214-221, 2003.   과학기술학회마을
5 홍승갑, 조민현, 강기봉, "페라이트계 스테인리스강의 재현 용접열영향부 열피로 특성", 대한용접.접합학회, 대한용접.접합학회지, vol. 27, no. 1, pp. 79-84, 2009.   과학기술학회마을   DOI   ScienceOn
6 J. A. Bannantine, J. J. Commer and J. L. Handrock, Fundamentals of Metal Fatigue Analysis, Prentice Hill, 1989.
7 김재훈, "철도구조물용 맞대기 용접시편 가공에 의한 피로수명 영향 및 용접부 형상을 이용한 피로수명 예측 연구", 한국철도학회논문집, vol. 9, no. 4, pp. 371-378, 2006.   과학기술학회마을
8 D. Radaj, "Review of fatigue strenth assessment of nonwelded and welded structures base on local parameters", Int. J. Fatigue, vol. 18, no. 3, pp. 153-170, 1996.   DOI   ScienceOn
9 J.Y. Yung, F. V. Lawrence, Jr., Prediction the fatigue life of welds under combined bending and torsion, College of Engineering University of Illinois at Urbana-champaign, A report of the Material Engineering-Mechanical Behavior, 1986.
10 C. Robert, Juvinall, Engineering Considerations of Stress, Strain, and Strength, McGraw-Hill, pp. 237-267, 1967.
11 G. Kim, S. Kang, Y. Lee, S. Park and W. Jung, "Study on durability and reliability of strut type suspension noise based on experimental methods", Journal of Mechanical Sience and Technology, vol. 26, no. 1, pp. 1-9, 2012.   DOI   ScienceOn
12 박경동, 하경준, 박형동, "차량용 스프링강의 피로균열진전에 미치는 압축잔류응력의 영향", 한국마린엔지니어링학회지, vol. 27, no. 1, pp. 82-90, 2003.   과학기술학회마을