Finite Element Investigations on the Fatigue Behaviour and Life Calculation for Axle of Aircraft

The data collected over the years illustrate that more than 50% of the failure in aircraft components are due to fatigue. This raises the need for fatigue resistant materials for the components of aircraft. The axle of the aircraft supports the whole weight of the aircraft and hence is subjected to fatigue loading during its entire service life. Titanium alloys are commonly used material in aviation sector since decades. In this paper, the behaviour of two titanium alloys, namely TIMETAL 834 and Ti–6Al–4V has been compared under fatigue loading which are used for axle of the aircraft. The fatigue life of the axle is increased by 81,230 cycles for TIMETAL 834 which is 17.77% of life for component if Ti–6Al–4V is used. The 3D model of axle is built in Creo 3.0 and exported to ANSYS. The fatigue analysis is carried out using fatigue tool in ANSYS Workbench 2019 R2.