This study investigates the thermal deformation behavior of a laminated thermal shield material, specifically a fiberglass composite polymer based on a phenol-formaldehyde matrix, under conditions of uniform and one-sided heating at rates reaching 600°C/min. The research focuses on the kinetics of thermal deformation in response to elevated temperatures and high gas flow conditions (up to 2500°C). The methodology employed includes computational analysis of the stressed-deformed states of reinforced plastic samples, allowing for measurement of temperature expansion under one-sided heating scenarios. Results indicate a linear relationship between the coefficient of thermal deformation (αT), temperature, and induced stresses, which effectively mitigates bending in free samples. Notably, for bent samples, the absence of a stress gradient (Δσ = 0) occurs under increased heating rates, resulting in elevated stress gradient values. These findings are compared with dilatometry data obtained at uniform temperature fields across heating rates of 20 to 1100°C, highlighting the significant impact of heating conditions on the thermal performance of composite materials. This work contributes to the understanding of material behavior under extreme thermal conditions, providing insights valuable for applications in aerospace and other industries requiring robust thermal shielding solutions
