Browse > Article
http://dx.doi.org/10.14346/JKOSOS.2011.26.2.001

Evaluation of Fatigue Endurance for an Ultra-light-weight Inline Skate Frame  

Lee, Se-Yong (Graduate School, Seoul National University of Technology)
Kim, Ho-Kyung (Department of Automotive Engineering, Seoul National University of Technology)
Publication Information
Journal of the Korean Society of Safety / v.26, no.2, 2011 , pp. 1-5 More about this Journal
Abstract
In order to evaluate fatigue endurance for an ultra-light weight inline skate frame, FEM analysis was performed. Tensile properties and a S-N curve were determined through tensile and fatigue tests on a modified Al-7075+$S_c$ alloy. The yield and ultimate tensile strengths were 553.3 MPa and 705.5 MPa, respectively. The fatigue endurance limit of this alloy was 201.2 MPa. For evaluating the fatigue endurance of the inline skate frame, the S-N data were compared with the stress analysis results through FEM analysis of the frame. The maximum Von-Mises stress of the frame was determined 106 MPa through FEM analysis of the frame, assuming that the rider weight is 75 Kg. Conclusively, on the basis of fatigue limit, the inline skate frame has a safety factor of approximately 2.0.
Keywords
modified Al-7075+$S_c$ alloy; inline skate frame; FEM analysis; safety factor; fatigue endurance limit;
Citations & Related Records
연도 인용수 순위
  • Reference
1 P.S. De, R.S. Mishra and C.B. Smith, "Effect of microstructure on fatigue life and fracture morphology in an aluminum alloy", Scripta Mater. Vol. 60, pp. 500-503, 2009.   DOI   ScienceOn
2 M.N. Desmukh, R.K. Pandey and A.K. Mukho-pahyay, "Fatigue behavior of 7010 aluminum alloy containing scandium", Scripta Mater. Vol. 52, pp. 645-650, 2005.   DOI   ScienceOn
3 R.C. Juvinall and K.M. Marshek, "Fundamentals of Machine Component Design", John Wiley & Son, New York, pp. 261-263, 1999.
4 김사용, "인라인 스케이트 디자인 개발에 관한 연구", 홍익대학교 산업대학원 석사논문, 2004.
5 Pro/ENGINEERING${\circledR}$ Advanced Tutorial (Release 20/2000i), Connect Press, Ltd.
6 Altair${\circledR}$ Hypermesh Basic Training Vol. 1-2, Altair Eng.
7 전명규, 박광동, 백진호, "쇼트트랙 스피드 스케이팅의 스케이트 반력 변화에 따른 특성 분석", 한국체육학회지, 제40권, 제2호, pp. 861-871, 2001.