| Abstract: | An approach to calculation of rotating disks with reinforcing coatings taking into account emerging boundary layers is formulated within linear spatial elasticity theory. Analysis of the calculated stress fields in a disk’s base material and in coatings enables one to explain two different phenomena: a significant increase in the load capacity of disks and the energy capacity of flywheels whose face areas are covered with high-modular coatings whose thickness is 0.1–0.6 mm and a reduction in the load capacity (in some cases) if thicker coatings are used. Applicability limits of the standard theory used to calculate disks, in which the stress state is assumed to be a 2D one and boundary layers are absent, are studied. |
