Comparative analysis of solutions for a nonaxisymmetric thick-walled tube and a tube with an elliptical outer contour under steady-state creep conditions

This article presents a comparative analysis of the solutions of nonlinear boundary value problems of steady-state creep for a nonaxisymmetric thick-walled tube and for a tube with an elliptical outer contour in the first approximation by the small parameter method. Two problems for the first approximation of the small parameter method are formulated in the article and the results of their solution are considered on the example of two materials with different material nonlinearity characteristics. The differences and similarities in the solution results are shown, which are given in the table and presented in the form of graphs for comparative analysis.