Abstract
Applicability evaluation of the developed weighth function based strip yield model for an embedded crack by applying the slice synthesis methodology ln elastic-perfect plastic bodies under monotonic uniform loading is performed.Although the weight function based strip yield model for a part-through semi-elliptical surface crack was proposed by Daniewicz and Aveline (2000), applicabl egeometries of cracked bodies is limited. Their proposed strip yield model treats only a semi-elliptical surface crack in semi-infinite bodies. Besides, quantitative investigations of the applicability seem to be insufficient.The authors proposed the improved strip yield model with slice synthesis methodology for an embedded crack, which enables to treat the finite boundary proplems. By applying proposed model, the back surface effect of the crack opening behavior and the plastic zone growth can be considered.The validity of improved strip yield model for embedded cracks is confirmed by comparing crack opening profiles under some crack geometries with elastic-plastic finite element analyses.
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