THERMAL ELASTO/VISCO-PLASTIC ANALYSIS OF MULTI-LAYERED MODERATELY THICK SHELLS OF REVOLUTION UNDER THERMAL LOADING DUE TO FLUID

摘要

An analytical formulation and a numerical solution of the thermal elasto/visco-plastic deformation of multi-layered moderately thick shells of revolution subjected to thermal loads due to fluid are developed. The temperature distribution through each layer thickness is assumed to be a quadratic curve and is determined using the equations of heat conduction and heat transfer. The equations of equilibrium and the relations between the strains and displacements are derived from the Reissner-Naghdi theory. For the constitutive relations, the Perzyna equations are employed. As numerical examples, two-layered cylindrical shells composed of mild steel and titanium subjected to thermal loads due to fluid are analyzed.