Numerical investigation for process of deformation of a multilayer shell under thermal loading

Abstract

© Published under licence by IOP Publishing Ltd. In this work study of deformation in multilayer element under thermal stress loading within the framework of geometrically nonlinear calculation, is carried out. The analyzed area is a multilayer truncated conical shell, which initially is under constant pressure along its outer surface, and then had been heated slowly. During the heating process, the structure loses its stability. Here the influence of kinematic fixing conditions of the shell, which is possible to be fixed as different parts of the end surfaces of the shell had been investigated moreover realized the conditions of contact interaction with rigidly fixed steel conical washer ring on which the shell is pushed before loading. Wherein, the process of attachment within the confines of the process of contact interaction is also actualized. We also investigated the possibility of replacing the multilayer shell with a single-layer shell with reduced elastic modulus.