Determination of Physical Fracture Conditions of AW-1050A Aluminum Specimens Under Different Material Weakening Geometries

The work concerns the experimental and numerical determination of the physical conditions of the cracking process of samples made of AW-1050A aluminum. The AW-1050A material is low-alloy aluminum and is widely used in the food industry, architecture, and energy industry. The tested samples are subjected to axial external loads until the material ruptures. In the conducted research, the main attention is focused on the physical conditions in the crack zone for various material weakening geometries. The experimental tests are the basis for the verification of the developed 3D discrete models. The geometries in the numerical model and the developed material model are based on experimental research. The ductile damage model is used to predict the initiation of material cracking. The obtained results of numerical simulations are compared with the experiment. The main aspect of the results is the comparison of the fracture zones in the material.