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Evaluation of Fatigue Life of Welded Joint of Gear Box-Shank in Vibro Ripper Using P-S-N Curve
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 Title & Authors
Evaluation of Fatigue Life of Welded Joint of Gear Box-Shank in Vibro Ripper Using P-S-N Curve
Oh, Kwang Keun; Kim, JaeHoon; Park, Jung Yeol; Yang, GyuSang; Park, JongWon; Kim, Sung Hyun;
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 Abstract
A vibro ripper utilizes high-frequency vibration for rock fragmentation. This concept is different from those used by other existing breakers. The gearbox-shank welded joint of a vibro ripper is a very important part. Because it delivers the vibromotive force to the tooth, it is important to predict its soundness. This study was conducted to predict the fatigue life under welding conditions. The shank materials were Hardox-Hituf and AR400, and the filler metals were CSF-71T and CSF-81T. Fatigue tests were conducted under each set of conditions. P-S-N curves are presented based on the statistical testing method recommended by JSME-S002, and a comparison is made of the results under each set of conditions. The life was estimated using a P-S-N curve.
 Keywords
High-Frequency Vibration;P-S-N Curve;Vibro Ripper;Fatigue Test;Cruciform Fillet Welding;
 Language
Korean
 Cited by
 References
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Oh, K. K., Kim, J. H., Kim, Y. W., Park, J. Y., Yang, G. S., Park, J. W. and Kim, S. H., 2014, "Fatigue Characteristics on Welded Joint of Gear Box-Shank in Vibro Ripper for Rock Crash," Journal of the Korean Society of Safety, Vol. 29, No. 6, pp. 28-33.