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Effect Range of the Material Constraint-II. Interface Crack

Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering, School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
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Metals 2019, 9(6), 696; https://doi.org/10.3390/met9060696
Received: 1 June 2019 / Revised: 16 June 2019 / Accepted: 18 June 2019 / Published: 20 June 2019
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Abstract

The selection of fracture behaviors used in the structure integrity assessment has significant implications on the accuracy of the assessment. The effect range of the material constraint is an important factor which effects the fracture behaviors of structures and exists in the different kinds of welded joints with the center crack. However, for the material constraint induced by an interface crack, which also appears widely in the welded joints, it is not clear whether the effect range exists or not. The further study of the effect range of the material constraint for the welded joints with interface crack is meaningful. Thus, in this study, different basic models with interface crack were designed, the fracture behaviors of these basic models under different material constraints were calculated, and the effect range of the material constraint induced by interface crack were studied. This study about the interface crack and the previous study about the center crack provide an additional basis for an accurate structure integrity assessment. View Full-Text
Keywords: material constraint; effect range; interface crack; J-resistance curve; crack propagation path material constraint; effect range; interface crack; J-resistance curve; crack propagation path
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Dai, Y.; Yang, J.; Wang, L. Effect Range of the Material Constraint-II. Interface Crack. Metals 2019, 9, 696.

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