Abstract
The blades of gas turbines are usually faced with high temperature and pressure changes, which in most cases cause the appearance and growth of micro-cracks in the blade and lead to failure. Since the loading applied to the turbine is in the mixed mode (I/II/III), therefore, the prediction of crack growth in these materials also requires an investigation in the mixed mode. In the present research, the numerical approach is addressed for investigation of the mixed mode (I/II/III) fracture of gas turbine blade considering semi-elliptical crack. In this context, the effects of semi-elliptical crack, size effect of blade, critical location and composite coating material are investigated for the rotational gas turbine blade. Eventually, stress intensity factors are obtained and compared for various crack location, aspect ratio, rotational speed and materials.
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Ghoreishi, S.M.N., Mehri Khansari, N. Mode (I, II, III) Stress Intensity Factors of Composite-Coated Gas Turbine Blade Using Semi-Elliptical Crack. Iran J Sci Technol Trans Mech Eng 47, 1841–1857 (2023). https://doi.org/10.1007/s40997-023-00592-7
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DOI: https://doi.org/10.1007/s40997-023-00592-7