Refined estimations of strength of structures from carbon-carbonic materials subjected to intense power and thermal loading

Abstract

The results of computer simulation of the deformation processes of non-homogeneous structural
element, which is manufactured using of carbon-carbonic composite materials, under intensive
non-stationary thermal and power loading are presented. The spatial structure and dependence of
characteristics of materials on temperature are taken into account. The computational experiment
was conducted using the finite element software developed on the basis of non-isothermal thermoelastic-
plasticity. A convergence of numerical solutions has been tested. It is shown that the
carbon-carbonic composite material in the structural element ensures its operational reliability
when the element is subjected to the specified internal pressure and intense heating to the
temperatures at which traditional materials cannot longer functioning in proper way.