Safety Factor Against Burst Speed of Turbomachinery Rotating Disks

Turbines are among the most stressed components in an air-breathing engine, which is the most common kind of aeronautical engine. Turbine rotor disks, in particular, have the great role of transmitting the power from the blades (that are invested by the fluid) and the power shaft (which is connected to the compressor). The aim of the research is to develop a common practice that uses commercial FEM codes to forecast the burst limit. This thesis work is focusing on the validation of a three-dimensional model that has some kind of non-axisymmetries in its geometry and uses the Large Displacement option in the FEM. In this way it can be demostrated the correlation between the material curve and burst, but also the great variability induced by the presence of holes in the web.