A STUDY ON THE J-INTEGRAL FOR UNDERMATCHED WELDED JOINTS
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Graphical Abstract
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Abstract
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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