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SOLUTION OF THE PROBLEM OF STABILITY OF A CYLINDRICAL SHELL MADE OF STEEL FOR PROPORTIONAL LOADING PROCESSES IN A COMPUTER PROGRAM

DOI: 10.46573/2658-7459-2021-37-46

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Authors

S.V. Cheremnykh

Abstract

The theory of stability of shells beyond the elastic limit is considered. Marked: since, depending on the history of the loading process of an elastic-plastic system, its final deformation corresponding to the same external load is different, the study of inelastic stability problems should proceed fr om the analysis of simple combined loading processes leading to various critical deformations. Not only the question of the loading history, which leads to the minimum value of critical loads, is considered, but also the question of choosing and implementing such a loading history of this system, which gives it the maximum value of the stability lim it and load-bearing capacity. Innovative methods for solving the problem of stability under simple proportional loading for rectilinear trajectories in the direction of structural mechanics and mechanics of deformable solids, implemented in the developed computer program, are proposed.

Keywords

computer program, stability, bifurcation, shell, simple loading, trajectory, deformation, mechanics.