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An important feature of real materials is the nonlinear nature of the relationship between stress and strain. Taking into account such features of deformation of structural materials in the calculation allows us to bring theoretical forecasts closer to their real behavior. Physical nonlinearity is due to the calculation in the calculation of the nonlinear dependence between the components of the generalized stresses and strains characterizes the work of the structural material in the elastoplastic region. Many structural elements of modern technology are made in the form of plates of various shapes. The widespread use of plates is explained by their high strength, considerable rigidity and relatively low weight, which, along with the manufacturability of manufacturing, distinguishes them among other structural elements. A constant trend in the development of technology is an increase in the intensity of dynamic effects, accompanied by an increase in the level of vibration.

In this article, a scientific study was conducted and studied on the effect of road surface on traffic noise level. The experiment was conducted on two different paved roads and the noise levels were based on international standards. The results of research conducted on asphalt-concrete paved roads with the addition of rubber granules found that the noise levels on high-quality bitumen-paved asphalt concrete paved roads differ from the noise sources. By giving several recommendations for the organization of noise protection have been developed.

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The paper provides a detailed analysis of the methods for calculating the thin-walled structure stability under static and dynamic loads, and the results of well-known studies related to assessing the stability of thin-walled structures. The paper gives a methodology for assessing the thin-walled structure stability and the analysis of stability loss of rectangular plates beyond the elasticity of the material. The stability loss of rectangular plates beyond the elastic limit of the material is investigated in the paper. A formula is proposed for determining the longitudinal forces in a plate under a state of infinitely small bending. An analytical formula is given to assess stability for the case of a hinged supported rectangular plate compressed in two directions beyond the elastic limit at various widths (b)-thickness (h) ratios of the plate. The proposed diagram of the plate material strain is in good agreement with the Berlin – Dahlem experimental diagram. It was stated that under linear hardening of the material, a square plate of flexibility b/h ≥ 20, loses its stability within the yield strength. Beyond the yield strength, flexibility b/h < 5 corresponds to stability loss.