Abstract
The extended J-integral for 3D linear elastostatic crack problems and its application to mixed mode problems is investigated. In 3D, the decomposition of the J-integral into its parts corresponding to the symmetric mode I and both antisymmetric modes II and III is derived explicitly. The range of validity of the decomposition method is also discussed in the framework of linear elastic fracture mechanics (LEFM). It is shown analytically that in a general mixed mode case the antisymmetric part of the J-integral can be split into the parts associated with mode II and mode III only in the crack near-field.
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Huber, O., Nickel, J. & Kuhn, G. On the decomposition of the J-integral for 3D crack problems. Int J Fract 64, 339–348 (1993). https://doi.org/10.1007/BF00017849
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DOI: https://doi.org/10.1007/BF00017849