Proceedings of the KSR Conference (한국철도학회:학술대회논문집)

The Korean Society for Railway (한국철도학회)
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An Experimental Study on the Fatigue Strength of Rolling Stock Structures

철도차량 구조물의 피로강도에 관한 실험적 연구

  • 구병춘 (한국철도기술연구원 차량연구본부) ;
  • 김재훈 (한국철도기술연구원 차량연구본부) ;
  • 오창록 (한국철도기술연구원 차량연구본부) ;
  • 김대진 (성균관대학교 기계공학과)
  • Published : 2004.06.01
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Abstract

We investigated the effect of weld details on fatigue behavior of a material, JIS SM 490 A, with yielding strength of about 350 MPa and tensile strength of about 520 MPa. Tensile tests, instrumented indentation tests and fatigue tests were carried out on double V-grooved butt weld plates such as reinforcement removed, as-welded and weld toe ground. In addition plates with transverse fillet welded web, load carrying cruciform fillet welded plates, non-load-carrying cruciform fillet welded plates, longitudinal butt welded plates and welded rectangular life-size box beams were tested. S-N curves for the above specimens were obtained and analyzed.

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