Analysis of the thermoelastoplastic nonaxisymmetric stress-strain state oflaminated circular cylindrical shells

A technique for analysis of the nonaxisymmetric thermoelastoplastic stress- strain state of laminated circular cylindrical shells is developed. It is a ssumed that the layers in a laminated package do not slip and separate rela tive to each other. The problem is solved using the geometrically linear th eory of shells that is based on the Kirchhoff-Love hypotheses. The equation s of thermoplasticity are written in the form of the method of additional s trains. The order of the obtained system of partial differential equations is reduced with the help of trigonometric series in the cyclic coordinate. The systems of ordinary differential equations thus obtained are solved by Godunov's method of discrete orthogonalization. As an example, the nonaxisy mmetric thermoelastoplastic stress-strain state of a two-layer cylindrical shell is considered.