Since application of aluminum recycled product is increasing, more consideration arises about effects of impurities build up by recycling process on mechanical properties of these products. As an illustration, Iron is the most important impurity in aluminum alloys which attend in formation of insoluble brittle phases. This causes an overall decrease in ductility of iron containing aluminum alloys and therefore, realization of the fracture behavior of these alloys is important to prevent their fracture during forming processes. One of the most accepted approaches for prediction of fracture of metals during forming processes is the application of a damage criterion complemented Finite Element Method (FEM) in which the fracture is predicted using variables of the forming process such as imposed equivalent plastic strain and stress-triaxiallity. This work is aimed to calibrate a stress-triaxiallity based damage criterion for Al-1.7Fe-0.9Si-0.5Cu alloy using simulations and experiments. For this purpose, deformation behavior of differently notched tensile specimens of this alloy is simulated using Abaqus 6.13 FEM software. Afterward, the used damage criterion is calibrated by comparing results of simulations with experimental results for fracture of specimens. Results show that the applied FEM method can identically predict the deformation and fracture behavior of notched tensile specimen .Using results of FEM simulation such as local stress-triaxiality and local equivalent strain in different specimen, the damage criterion is calibrated for the used alloy as a dependent of stress-traixiallity.

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