2012 # On the Point Method and the Line Method notch effect predictions in Al7075-T651

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“…The authors have previously reported [17,18] that, beyond the stress relaxation generated by the presence of a finite notch, the notch effect also generates an evolution of fracture micromechanisms. Thus, for a given material and condition, and assuming brittle behaviour in cracked conditions, the fracture micromechanisms become more and more non-linear (ductile) when the notch radius increases, something that may be related to the corresponding progressive loss of constraint.…”

confidence: 99%

“…The authors have previously reported [17,18] that, beyond the stress relaxation generated by the presence of a finite notch, the notch effect also generates an evolution of fracture micromechanisms. Thus, for a given material and condition, and assuming brittle behaviour in cracked conditions, the fracture micromechanisms become more and more non-linear (ductile) when the notch radius increases, something that may be related to the corresponding progressive loss of constraint.…”

confidence: 99%

“…Basically, they all suggestprovide mathematical expressions implying a reduction of the stress acting perpendicular to the notch plane, in such a way that the larger the notch radius the more significant the stress reduction. This generally has direct consequences on the resistant behaviour of structural components (e.g., [10][11][12][13][14][15][16][17][18][19]). Comprehensive reviews of this phenomenon covering thousands of experimental data may be found in [15,16,19], whereas specific results for particular materials may be found in, for example, [13] (ceramics), [14] (alumina and soda-lime glass), [17] (PMMA) and [18] (Al7075-T651).…”

confidence: 99%