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WU Bing, YANG Xin-qi, JIA Fa-yong, HUO Li-xing. Fatigue assessment of duplex stainless steel welded joints by volumetric approach[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2004, (6): 7-10.
Citation: WU Bing, YANG Xin-qi, JIA Fa-yong, HUO Li-xing. Fatigue assessment of duplex stainless steel welded joints by volumetric approach[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2004, (6): 7-10.
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Fatigue assessment of duplex stainless steel welded joints by volumetric approach

  • School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China

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  • Received Date: November 16, 2003
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  • The volumetric approach (VA) was applied to the fatigue assessment of SAF2205 duplex stainless steel welded joints with two types of geometrical modes, and its feasibility and the effect of the finite element calculation on this method were discussed. It was shown that VA local average stress is an universal fatigue restraining parameter, and the fatigue intension expressed by the local average stress is independent of the joint geometries. For the welded joints, the local average stress is 411.3 MPa, and the reasonable predicting results can be obtained if the local parameters are calculated by selecting the minimal element size which is 0.14 mm or lower. The results offer the important gist for predigesting the fatigue assessment of welded joints.
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