Calculation and manufacture of multilayer composite structures

Abstract

A brief overview of the work done to solve the problems of bending of composite plates and shells is presented. A mathematical model has been developed that takes into account the physically nonlinear properties of the layer’s material. The seams between the layers have finite longitudinal stiffness. Seams can be continuous or discrete (anchors). The proposed mathematical model makes it possible to take into account the creep properties of the aging material. The reliability of calculations is substantiated by comparison with experimental data and known calculations. Taking into account the temperature mode made it possible to develop a technology for manufacturing multilayer structures with predicted properties of the material of the layers. Based on the results presented, methods for calculating multilayer structures and technologies for their manufacture have been developed. It is proposed to create products from cement-based composites with unique planned characteristics, oriented to the intended purpose of the manufactured structures. The intended purpose of products can be achieved by using a material with special characteristics in each layer. To protect against rodents and microorganisms, light antiseptics can be used in the process of making the composite. The solution of these issues in thin-walled structures is associated with the development of technologies for creating multilayer composite systems. The results of the creation of composites are presented.