Carbon Fiber Homogenization for Modelling Sleeve of High-Speed Electrical Machines

At present, carbon fiber has become widespread and used in electromechanical technologies in the development of processing technologies. However, when modeling carbon fiber, difficulties arise - often, the mechanical parameters of separately carbon fiber and epoxy resin are known, and only for a specific layer thickness. Also, carbon fiber is used as a composite material, and, therefore, there is a need to determine the optimal sequence of sheet orientation for use in electrical machines. With the help of the COMSOL Multiphysics software package, the possibility of determining the homogenized properties of carbon fiber bonded with epoxy resin was investigated, and the issue of determining the optimal sequence of sheets from the point of view of minimizing mechanical stresses was also considered. The application of a carbon fiber sleeve for a high-speed synchronous reluctance electrical machine has been considered. The mechanical analysis results indicate this technology's applicability in the field of high-speed electromechanics.