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http://dx.doi.org/10.3744/SNAK.2011.48.1.56

Fatigue Assessment of High Strength Steel with Butt Welded Joints for the Root Gap Difference  

Kim, Ho-Jung (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Kang, Sung-Won (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Kim, Myung-Hyun (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.48, no.1, 2011 , pp. 56-61 More about this Journal
Abstract
In this study, a series of fatigue tests was conducted to evaluate fatigue strength for the root gap difference with high strength steel with butt welded joints. A finite element analysis using effective notch stress method was also performed to compare effective notch factors each other with butt welded specimens made by copper backing. The results of fatigue tests were classified according to the root gap difference. Fatigue life of butt welded specimens is presented for determining the root gap of high strength steel with butt welded joints in terms of fatigue strength. Then effective notch stress was applied to interpret fatigue strength of butt welded specimen model which is reflected actual measured dimensions. As a result, fatigue strength of high strength steel with butt welded specimens is increased by root gap gets longer in length.
Keywords
Fatigue; High strength steel; Butt welded joint; Root gap; Effective notch stress; Copper backing;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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1 Raghu, O. and Philip, J., 2006. Thermal properties of paint coatings on different backings using a scanning photo acoustic technique. Measurement science and technology, 17(11), pp.2945-2949.   DOI   ScienceOn
2 Choi, K.H. Choi, H.Y. Ha, J.H. and Park, Y.S., 2002. Fatigue Crack Growth Analysis of High Strength Steel (POSTEN80) with Out-of-plane Gusset. Journal of Korean Society of Civil Engineers, 22(1-A), pp.123-130.   과학기술학회마을
3 Do, H.D., Kang, S.W., Han, J.H., Kim, S.M. and Kim, M.H., 2009. Fatigue Assessment in accordance with Back Plate of Butt Welded Specimens. Journal of the Society of Naval Architects of Korea, 46(1), pp.24-30.   과학기술학회마을   DOI   ScienceOn
4 Han, M.S. Kim, J.D. & Lee, H.S., 1991. An Experimental Study on Fatigue Fracture Behaviour of Surface Crack in Finite Plates and Fillet Welded T-Joint. Journal of the Society of Naval Architects of Korea, 28(2), pp.275-284.   과학기술학회마을
5 Hobbacher, A., 1996. Fatigue design of welded joints and components: Recommendations of IIW Joint Working Group XIII-XV, The International Institute of Welding.
6 Lee, H.W. Shin, Y.T. Park, J.U. and Suk, H.G., 1998. A Study on Metallurgical Properties and Fatigue Strength depending on Bead Height in SAW Butt Joints. Journal of the Society of Naval Architects of Korea, 35(3), pp.62-70.   과학기술학회마을
7 Nagai, K., 1976. Plastic Deformation Behaviors in the Longitudinal Butt Welded Joints between High Strength Steel and Mild Steel. Journal of the Society of Naval Architects of Korea, 13(2), pp.45-51.   과학기술학회마을
8 Neuber, H., 1946, Theory of Notch Stress. JW Edwards Co, Ann Arbor, Michigan.
9 Radaj, D., 1996. Review of fatigue strength assessment of non-welded and welded structures based on local parameters. International Journal of Fatigue, 18(3), pp. 153-170.   DOI   ScienceOn