Every startup and shutdown of gas turbine engine the turbine blades are subjected to high centrifugal force due to high rotational speed and also operated at high critical environmental condition. So that the turbine blades are fails by fatigue is common. Based on the stress result the analysis is based on stress based fatigue assessment or strain based fatigue assessment. This paper summarizes the design and analysis of Gas turbine blade, CATIA is used for design of solid model and ANSYS14.0 software for analysis for F.E. model generated, by applying boundary condition, this paper also includes specific post processing and life assessment of blade. How the program makes effective use of the ANSYS14.0 preprocessor to mesh complex gas turbine engine blade geometries and apply boundary conditions. Plastic deformation on the blade leads to low cycle fatigue, which is based on strain life approach.  

Keywords: Gas Turbine blade, High cycle fatigue, von misses stress, Low cycle fatigue