Size effects on mechanical properties of pure industrial aluminum sheet for micro/meso scale plastic deformation: Experiment and modeling

The mechanical properties of pure industrial aluminum sheets were examined by taking into account the experimental results and finite element simulation using ABAQUS soft. The results showed that the geometrical dimensions of aluminum sheets at the micro/meso scale affected its mechanical properties. Tensile tests of the Al foils with different thicknesses were carried out at room temperature to investigate the effects on the tensile strength and elongation. The stress-strain curves and fracture morphology of the sheets were determined. The Void nucleation was analyzed by taking into account that the number of voids decreases with decreasing sheet thickness. The experimental and finite element simulations results showed that the size effects has a significant influence on the fracture behavior at the micro/meso scale. It was observed that the tensile strength decreased with the decreasing thickness. The fracture mechanism of thin sheets changed from a ductile to brittle fracture with the decreasing thickness. This study further contributes to understanding the size effects on the mechanical properties of pure industrial aluminum sheets at the micro/meso scale. (C) 2020 Elsevier B.V. All rights reserved.

Automated summary

The mechanical properties of pure industrial aluminum sheets were studied at the micro/meso scale using experimental results and finite element simulations. The study revealed that the geometrical dimensions of aluminum sheets significantly affect their mechanical properties, particularly in terms of fracture behavior.