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http://dx.doi.org/10.3744/SNAK.2009.46.4.417

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)
Publication Information
Journal of the Society of Naval Architects of Korea / v.46, no.4, 2009 , pp. 417-423 More about this Journal
Abstract
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.
Keywords
Notch fatigue analysis; Bead shape modelling; Fatigue strength test for longitudinal-gusset plate;
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