Browse > Article

Fatigue Characteristics of SM490A Welded Joints for Bogie Frame  

Park Jae Sil (성균관대학교 기계공학부)
Seok Chang Sung (성균관대학교 기계공학부)
Koo Jae Mean (성균관대학교 기계공학부)
Shin Jae Ho (자동차부품연구원)
Goo Byeong Choon (철도기술연구원)
Publication Information
Journal of the Korean Society for Precision Engineering / v.21, no.12, 2004 , pp. 146-153 More about this Journal
Abstract
We compared the fatigue characteristics of weld metal with those of base metal, and not heat-treated with heat-treated. Also, we examined the influence of bead in a viewpoint of fatigue life. From the experimental results, it has been seen that the fatigue characteristics of welded specimens grinded the toe of bead are slightly better than not grinded. We have seen that the fatigue life is affected more by the stress concentration on the profile change in the weld toe rather than by residual stress influence, because heat-treated or not had almost no influence on the fatigue characteristics.
Keywords
Fatigue; S-N curve; Base metal; Weld toe; Stress concentration factor; Weld bead profile;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
연도 인용수 순위
1 Youn, J. G. and Kim, H. J., 'A Study on the Fatigue Characteristics of Accelerated Cooled TMCP Steel's Welded Joint with High Heat Input,' Journal of the Korean Welding Society, Vol. 6, No. 1, pp. 28-34, 1988   과학기술학회마을
2 Lee, H. W., Kim, J. H and Kim, H. J., 'The Static Overload Effect Estimations on Fatigue Strength by the Measurement of Local Strain Variation at the Weldment Toe,' Journal of the Korean Society of Precision Engineering, Vol. 18, No. 6, pp. 59-66, 2001   과학기술학회마을
3 Nishida, M., Stress Concentration, Morikita Ink., 1971
4 Kang, S. W., 'Study on Stress Concentration Factor at Fillet Welded Joint,' SNAK Papers, Vol. 33, No. 3, 1996   과학기술학회마을
5 Stephens, R. I., Metal fatigue in engineering, John wiley & sons, inc, pp. 196-199, 2001
6 Terasaki, T., 'Effect of welding residual stress on fatigue strength of welded joint,' Material, Vol. 36, No. 410, pp. 1246-1252, 1987
7 ASTM, E8-01 'Standard Test Methods for Tension Testing of Metallic Materials,' 2001
8 ASTM, E466-96 'Standard Practice for Conducting Force Controlled Constant Amplitude Axial Fatigue Tests of Metallic Materials,' 2002
9 Park, B. N., Kim, K. H. and Kim, H. K., 'An Evaluation Method of Fatigue Strength and Reliability in a Railway Wheel with an Application of Strength-Stress Interference Model,' KSR, Vol. 5, No. 2, pp. 118-124, 2002   과학기술학회마을