The stability of cylindrical and conic shells made of composite materials with an elastoplastic matrix

Studies in which problems on the stability of shells made of inelastically deformed composite materials are formulated and solved are generalized. Primary attention is focused on works that employ a structural approach to the description of the deformation of a fibrous composite consisting of elastoplastic components. The load for which the solution of the problem becomes ambiguous (bifurcation) is considered critical. Boroaluminum cylindrical and conic shells subject to external pressure, axial compression, and combined loading by surface and axial forces of different signs are analyzed for stability. The effect of boundary conditions and reinforcement on the critical loads is considered. The effect of temperature on shell stability beyond the elastic limits is investigated by an example of a cylindrical shell.