Dynamic Coupling Analysis on Thermo–Chemo–Mechanical Field and Fluid–Structure Interaction for Aero-Engine Turbine Blade with Functional Gradient Thermal Barrier Coatings

In this study, an extended layerwise/solid-element (XLW/SE) method is developed for the thermo–chemo–mechanical (TCM) coupling problem of aero-engine turbine blade with thermal barrier coatings (TBCs). The consists two parts, layerwise (XLW) and three-dimensional (3D) solid-element (SE) method, which are adopted to formulate governing equations TBCs substrate, respectively. Then, according compatibility conditions displacement, temperature, concentration internal force equilibrium at TBCs/substrate interface, equation final structure assembled. Through a time integration, dynamic responses temperature can be calculated. addition, fluid–structure analysis conducted by using COMSOL. nonuniform load imported into XLW/SE calculate mechanical response structure. Finally, corresponding computing program compiled C++. numerical examples, TCM on without interfacial debonding delamination damages. To validate effectiveness proposed model compared those 3D elastic generated COMSOL, shows that models in good agreement.