Egoleva

A mathematical multi-level model for calculating thermo-elastic properties of textile composites with alumino-chromic phosphate matrices under high temperatures was developed. This model takes into account physical-chemical transformations occurring in an alumino-chromic phosphate binder and glass fibers under a high temperature. Comparison of calculation results with experimental data was carried out; it was shown that the developed model allowed to predict a complicated nonlinear character of changes in elastic properties of composites under heating up to 1600 К. The developed model could be used for prediction of elastic properties of composites with alumino-chromic phosphate matrices under complicated heating modes.