Thermal stresses in stiffened cylindrical shell by heating plane parallel heat flow

The work is devoted to the study of the behavior of a thin-walled cylindrical shell supported at the ends by frames and subjected to heating by a pulsed heat flux from an infinitely remote radiation source. The paper presents asymptotic solutions of the heat conduction problem obtained by the operational method, describing the temperature distribution in the structure at short times and intense convective heat exchange with the environment. An analytical solution of the linear thermoelasticity problem describing the stress-strain state of the structure is constructed by a complex method. The presented engineering methods provide sufficient accuracy for practical calculations in the analysis of thin-walled structural elements of aircraft.