Influence of precipitates on ductile fracture of aluminium alloy AA7075 at high strain rates

Influence of specimen width on the deformation and fracture behaviour of AA5182 sheets

“…15. Following trends reported in the literature [10,11,[29][30][31], experimental points can be quite reasonably fitted by using Eq.…”

“…Such information can be obtained by FE analysis which was demonstrated to correctly model the fracture process for this class of alloys [31,32]. The evolution of the triaxiality factor with plastic strain and at the centre of the shear band can be deduced from the FE stress-strain state during the test.…”

Effect of Volume Fraction on the Flow Behavior of Al-SiC Composites Considering the Spatial Distribution of Delaminated Particles

“…10,30) At low temperatures, high strain rates, and for smaller particles, delamination takes place at the interface between the matrix and the particles, leading to microcrack formation, whereas at higher temperatures, lower strain rates, and for larger particles, particle fracture results in a microcavity that elongates with further plastic deformation. To determine the failure mechanism of the current composite, unloaded specimens, specimens during tensile tests, and fractured specimens were cut longitudinally and examined by SEM.…”

“…(16), as compared with the NF of delaminated particles in eq. (10). The strain-hardening behavior, d c =d", can be calculated from the derivative of eq.…”

“…The latter is a complex phenomenon that is strongly dependent on the microstructural characteristics. Recent studies on the effects of damage on the flow behavior of composites have concentrated on various damage mechanisms: these include particle fracture; [1][2][3] particle/matrix delamination; 4,5) void nucleation, growth and coalescence; [6][7][8][9] and stress and strain release 10) of the particles and their surrounding matrix.…”