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Ma Weidian, Zhang Shicheng, Tian Xitang. A STUDY ON THE J-INTEGRAL FOR UNDERMATCHED WELDED JOINTS[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1987, (2): 89-97.
Citation: Ma Weidian, Zhang Shicheng, Tian Xitang. A STUDY ON THE J-INTEGRAL FOR UNDERMATCHED WELDED JOINTS[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 1987, (2): 89-97.
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A STUDY ON THE J-INTEGRAL FOR UNDERMATCHED WELDED JOINTS

  • Qinghua University;Harbin Institute of Technology

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  • Received Date: January 31, 1986
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  • In this paper the path-independence of the J-integral and the energy expression J=-(1 ∂U)/(B ∂α) for heterogeneous bodies containing a crack in the sandwiched soft layer,which are the simplified models of cracked undermatched welded joints,are verified by elastoplastic FEM.The influence of mechanical heterogeneity on the J-integral values is investigated.
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