Theoretical Basis for the Calculation of the Stress-Strain of a Repaired Airfield Coating
Statement of the problem. The problem of the calculation of the stressed-strain of a reconstructed construction of the airfield cover for various boundary conditions was solved using the theoretical approaches suggested by the authors of this article. Their comparative analysis was carried out. Results. The theoretical foundations of the analytical method for calculating stresses in a layered structure of a restored airfield coating under the influence of a static load and a numerical method for calculating the stress-strain of a repaired airfield coating using the software complex «Lira» are presented. The shortcomings of the analytical method of calculation are revealed, the specifics of the determination of the stress-strain in the program complex are shown allowing one to take into account the shortcomings. A comparative analysis of the results of stress analysis is carried out by means of two methods. Conclusions. The study showed the possibility of calculating stresses using the methods proposed by the authors of the article. The analytical method is more suitable for preliminary calculations. The results of numerical modeling taking into account a greater number of input parameters allow us to assess the stress-strain more thoroughly, which is relevant for solving the research problems.