대한조선학회논문집 (Journal of the Society of Naval Architects of Korea)

  • 제46권4호
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  • Pages.417-423
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  • 2009
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  • 1225-1143(pISSN)
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  • 2287-7355(eISSN)
대한조선학회 (The Society of Naval Architects of Korea)
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용접연결부의 실제 비드형상을 고려한 노치피로해석법

Notch Fatigue Analysis Based on the Actual Bead Shape of Welded Joint

  • Yang, Park-Dal-Chi (School of Naval Architecture and Ocean Engineering, Ulsan University) ;
  • Park, Chi-Mo (School of Naval Architecture and Ocean Engineering, Ulsan University)
  • 발행 : 2009.08.20
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초록

This paper is concerned with the fatigue behaviour of welded joints by the notch stress approach. The actual welded shape is complex and 3-dimensional that may influence greatly the fatigue strength. The purpose of the paper is to present a way of modelling the actual weld bead shape by using a 3-D Laser scanner for experimental models of steel plates with longitudinal fillet welds, and applying its results to a proper notch stress method for the fatigue strength. The present approach to assess the fatigue strength is quite promising with application to a variety of welded joints and effects of weld profiling to fatigue strength.

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참고문헌

  1. Bellet, D., Taylor, D., Marco, S., Mazzeo, E., Guillois, J. and Pircher, T., 2005, 'The Fatigue Behaviour of Three-dimensional Stress Concentrations,' International Journal of Fatigue, Vol. 27 pp. 207-221 https://doi.org/10.1016/j.ijfatigue.2004.07.006
  2. El Haddad, M.H., Dowling, N.E. and Topper, T.H., 1980, 'J Integral Applications for Short Fatigue Cracks at Notches,' International Journal of Fracture, Vol. 16, pp. 15-30 https://doi.org/10.1007/BF00042383
  3. Fricke, W. and Kahl, A., 2007, 'Local Stress Analysis of Welded Ship Structural Details under Consideration of the Real Weld Profile,' 10th International Symposium on Practical Design of Ships and Other Floating Structures, Houston, Texas
  4. Niemi, E., Fricke, W. and Maddox, S.J., 2006, 'Fatigue Analysis of Welded Components,' IIW-1430-00 Woodhead Publ.. International Institute of Welding
  5. Radaj, D., Sonsico, C.M. and Fricke, W., 2006, 'Fatigue Assessment of Welded Joints by Local Approaches,' Second Edition, Woodhead Publ
  6. Smith, R.A. and Miller, K.J., 1978, 'Predic of Fatigue Regimes in Notched Components,' International Journal of Mechanical Science, Vol. 20, pp. 201-206 https://doi.org/10.1016/0020-7403(78)90082-6
  7. Taylor, D., Barrett, N. and Lucano, G., 2002, 'Some New Methods for Predicting Fatigue in Welded Joints,' International Journal of Fatigue, Vol. 24, pp. 509-518 https://doi.org/10.1016/S0142-1123(01)00174-8
  8. Zhu, X.K., Liu, G.T. and Chao, Y.J., 2001, 'Three-dimensional Stress and Displacement Fields near an Elliptical Crack Front,' International Journal of Fracture, Vol. 109, pp. 383-401 https://doi.org/10.1023/A:1011030615958

피인용 문헌

  1. Estimation Fatigue Life of Weldments by Notch Stress Approaches vol.25, pp.5, 2011, https://doi.org/10.5574/KSOE.2011.25.5.047
  2. Modified S-N Curve Method to Estimate Fatigue life of Welded Joints vol.26, pp.2, 2012, https://doi.org/10.5574/KSOE.2012.26.2.026