REVISED THEORY OF AVERAGE BENDING OF THREE-LAYERED SPHERICAL AND CYLINDRICAL SHELLS WITH TRANSVERSALLY-SOFT AGGREGATE OF ARBITRARY THICKNESS UNDER THERMAL-POWER LOADING

Abstract

A revised nonlinear theory of the average bending of the 3-layered spherical and cylindrical shells with some transversally-soft aggregate is developed for investigating mixed bending forms of stability loss (1) under the thermo -power loading. Within the scope of the equations obtained the carrier layers of the 3-layered shells are assumed thin, but the restrictions on the aggregate thickness are not imposed. It is also assumed, that a temperature field is changed only through the thickness of the layer pack and the distribution laws of the temperature fields along the lateral coordinates of both- the carrier layers and aggregate-are derived from solving the corresponding equations of heat conduction by satisfying boundary conditions on the facial shell surfaces and accomplishing the conditions of an ideal thermal contact between the layers.