Behavior of matrices at high temperatures

Abstract

The aim of the present chapter is to investigate the behavior of nonreinforced isotropic ablative matrices at high temperatures. We will consider the following questions: Solving the local problems over a periodicity cell; calculating the effective characteristics of ablative isotropic materials with the help of these solutions; determining the relationship between microcharacteristics of phases (in the main, microstresses) and macrocharacteristics; formulating a failure criterion for ablative isotropic materials; investigating the phenomena caused by volumetric ablation inside matrices. In addition, practically all computed results are compared with corresponding experimental data on high-temperature behavior of ablative matrices.