Low-Velocity Impact Damage Due to Debris Particles Impacted on Titanium Alloy (Ti–6Al–4V) Gas Turbine Blades

摘要

Abstract Millimeter-sized objects like engine components, sand particles, or debris impact on the gas turbine blades very frequently during operation of a gas turbine. This is one of the major concerns in the aviation industry, and various studies and research have been done throughout the decades in preventing the damage. Such impacts may not affect or damage the gas turbine blades but the frequent impact leads to the fatigue of the gas turbine blades and eventually to failure. The low-velocity impact analysis of gas turbine rotor blades in aviation has been presented in this study. Impact analysis of spherical steel balls as impactors of different masses on titanium-alloyed rotor blades is recorded and the result data are collected. To verify the present method, the numerical data are also compared to open literature. The analysis has been done using ANSYS software considering factors like meshing sizes, impactor size, and velocity.