Journal of the Korean Society for Railway (한국철도학회논문집)

The Korean Society for Railway (한국철도학회)
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A Study on the Low Temperature Mechanical Characteristics of SM490A for the Railroad Vehicle Structure

철도차량 구조물용 연강(SM490A)의 기계적 내한 특성 연구

  • 강기원 (체육과학연구원, 스포츠산업실) ;
  • 구병춘 (한국철도기술연구원, 철도시스템안전연구본부) ;
  • 유원희 (한국철도기술연구원, 철도시스템안전연구본부) ;
  • 김재훈 (한국철도기술연구원, 철도시스템안전연구본부)
  • Published : 2006.12.30
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Abstract

This study investigates the effects of the material properties and the fatigue behavior in the SM490A material specimens due to the low-temperature atmosphere. In the fatigue behavior, the low-temperature affects the fatigue life. As the temperature get low, the fatigue limit increase, also As the yield strength and the tensile strength increase, the impact absorbed energy decrease. The difference of fatigue lift represents to normal distribution and it is larger between the room temperature and the low temperature, but in the result of the cumulative density function, the effect of temperature is not too large on it.

Keywords

References

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