Browse > Article

Fracture Mechanics Characteristics of Wheel and Axle For High Speed Train  

Kwon, Seok-Jin (Vehicle-Track research LAB., Korea Railroad Research Inst.)
Seo, Jung-Won (Vehicle-Track research LAB., Korea Railroad Research Inst.)
Lee, Dong-Hyung (Vehicle-Track research LAB., Korea Railroad Research Inst.)
Ham, Young-Sam (Vehicle-Track research LAB., Korea Railroad Research Inst.)
Publication Information
Journal of the Korean Society for Precision Engineering / v.27, no.8, 2010 , pp. 28-34 More about this Journal
Abstract
Railway wheel and axle is the most critical components in railway system. A wheel and axle failure can cause a derailment with its attendant loss of life and property. The service conditions of railway vehicles have become severe in recent years due to a general increase in operating speeds. Therefore, more precise evaluate of wheelset strength and safety has been desired. Fracture mechanics characteristics such as dynamic fracture toughness, fatigue threshold and charpy impact energy with respect to the tread, plate, disc hole of wheel and the surface of press fitted axle are evaluated. This paper describes the difference of fracture toughness, fatigue crack growth and fatigue threshold at the locations of wheel and axle. The results show that the dynamic fracture toughness, $K_{ID}$, is obviously lower than static fracture toughness, $K_{IC}$ and the fracture mechanics characteristics are difference to the location of wheel tread and hole.
Keywords
High Speed Train; Wheel; Axle; Fracture Toughness; Fatigue Crack Growth;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Ham, Y. S., Lee, D. H., Kwon, S. J., You, W. H. and Oh, T. Y., "Continuous measurement of interaction forces between wheel and rail," International Journal of Precision Engineering and Manufacturing, Vol. 10, No. 1, pp. 35-39, 2009.   과학기술학회마을   DOI
2 Ekberg, A., "Rolling contact fatigue of railway wheels -a parametric study," Wear, Vol. 211, No. 2, pp. 280-288, 1997.   DOI   ScienceOn
3 Ekberg, A. and Sotkovski, P., "Anisotropy and rolling contact fatigue of railway wheels," Journal of Fatigue, Vol. 23, No. 1, pp. 29-43, 2001.   DOI   ScienceOn
4 Zerbst, U., Madler, K. and Hintze, H., "Fracture mechanics in railway applications -an overview," Engineering Fracture Mecahnics, Vol. 72, No. 2, pp. 163-194, 2005.   DOI   ScienceOn
5 Akama, M., "A study on the critical crack sizes that cause wheel fracture," World Congress Railway Research, 2001.
6 Hirakawa, K., Tokimasa, K. and Sakamoto, H., "Fracture mechanics approach to the strength of wheelsts," Sumitomo Metal, Vol. 32, No. 3, pp. 349-358, 1980.
7 ASTM E647-00, "Standard test method for measurement of fatigue crack growth rates," 2000.
8 ASTM E23-00, "Standard method for Notched bar impact testing of metallic materials," 2000.
9 Kubota, M. and Hirakawa, K., "The effect of rubber contact on the fretting fatigue strength of railway wheel tire," Tribology International, Vol. 42, No. 9, pp. 1389-1398, 2009.   DOI   ScienceOn
10 Esslinger, V., Kieselbach, R., Koller, R. and Weisse, B., "The railway accident of Eschede - technical background," Engineering Failure Analysis, Vol. 11, No. 4, pp. 515-535, 2004.   DOI   ScienceOn
11 Akama, M. and Ishizuka, H., "Reliability analysis of Shinkansen vehicle axle using probabilistic fracture mechanics," JSME International Journal, Vol. 38, No. 3, pp. 75-80, 1995.
12 ASTM E399, "Standard test method for plane strain fracture toughness of metallic materials," 1997
13 ASTM E1820-99a, "Standard test method for measurement of fracture toughness," 1999.
14 ISO 14556, "Steel-Charpy V-notch pendulum impact test-Instrumented test method," 1999.