Diagnostics of coating and adhesive properties on load-bearing elements of complex shape

Protective coatings are used to solve many technical and economic problems. Information on known methods and approaches to studying the mechanical and adhesive properties of coatings is provided. It is noted that modern thin-walled structures, as a rule, have a complex geometry. In this case, protective coatings are formed directly on the surfaces of load-bearing elements. Known adhesion meters have a number of limitations. There are practically no works on determining the mechanical properties of coatings and adhesive formed on surfaces of complex shapes. An effective two-dimensional experimental — theoretical approach to diagnosing the rigidity and adhesive properties of a thin-layer coating formed directly on the surface of a load-bearing element of complex shape is described. At the theoretical stage of the study, the spline version of the finite element method is effective, when varying the properties of the material, we approach the shape of the experimental dome of the considered loading stage.