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FU Lei, CHENG Ronglong, YANG Jianguo, WANG Tao, FANG Hongyuan. Analysis of stress concentration factors of overlap joints based on finite element method[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2013, (7): 109-112.
Citation: FU Lei, CHENG Ronglong, YANG Jianguo, WANG Tao, FANG Hongyuan. Analysis of stress concentration factors of overlap joints based on finite element method[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2013, (7): 109-112.
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Analysis of stress concentration factors of overlap joints based on finite element method

  • 1.

    State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China

  • 2.

    State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China;Institute of Process Equipment and Control Engineering, Zhejiang University of Technology, Hangzhou 310014, China

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  • Received Date: May 30, 2012
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    • Abstract
  • Stress concentration factors have a significant effect on the load capacity of overlap joint.The influence of joint geometric parameters on stress concentration factors of bilateral welded undermatching overlap joints were studied based on the finite element method,and the stress concentration equation was founded based on regression analysis method.The result shows that the lap length plays the most important role in stress concentration factors.The stress concentration factors at weld root increase with the lap length increasing,weld width decreasing and weld toe smooth transition radius decreasing.The stress concentration factors at weld toe increase with the lap length and weld width increasing.Weld toe with smooth transition radius has little effect on concentration factors at weld toe.The stress concentration equation has a good agreement with the finite element result.
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