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- W3136335385 abstract "Abstract Single edge notched bars (SENB), in the bending mode, with a/W ratios ranging from 0.05 to 0.5 were examined for fracture toughness in terms of the J-integral approach. The results indicate that for a/W ratios less than 0.3, there is a significant loss of J-dominance. This loss is attributed to the effect of plastic deformation on the cracked face. For a/W ratios greater than 0.3, J-dominance is maintained into the large scale yielding regime. According to the recently developed two-parameter criterion (J,Q), compressive Q-stress was interpreted as an indication of low crack-tip stress triaxiality for shallow cracks, while positive Q-stress was associated with high crack-tip stress triaxiality for deep cracks. For the material properties and specimen geometries considered herein, a fracture toughness locus was constructed in terms of the (J,Q) parameters for each of the a/W ratios. The overall fracture data are in agreement with those predicted by other approaches and provide a rigorous framework for interpreting the effect of loss of crack-tip constraint in elastic-plastic fracture analyses." @default.
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- W3136335385 date "1993-09-19" @default.
- W3136335385 modified "2023-09-24" @default.
- W3136335385 title "Crack-Tip Fields of Short Cracks in Bending As Characterized by Two Parameter Criterion" @default.
- W3136335385 doi "https://doi.org/10.1115/detc1993-0069" @default.
- W3136335385 hasPublicationYear "1993" @default.
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