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- W1997761005 abstract "In this work, an improvement in the stiffness derivative method based on a shape design sensitivity analysis is proposed, so that the error inherent in the finite difference procedure is avoided. For a global estimation of G from a given finite element solution, this approach is shown to be equivalent to the well-known J-integral when the latter is numerically implemented through its equivalent domain integral. However, it is verified that its direct application to 2D mixed mode problems of linear elastic fracture mechanics through the field decomposition technique yields estimates for GI and GII which are in general more accurate for the proposed method. The importance of the velocity field is also remarked and some suggestions for its choice are given." @default.
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- W1997761005 date "2002-12-01" @default.
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- W1997761005 title "An implementation of the stiffness derivative method as a discrete analytical sensitivity analysis and its application to mixed mode in LEFM" @default.
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- W1997761005 doi "https://doi.org/10.1016/s0013-7944(02)00011-5" @default.
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