Aiming at the problem of thickness optimization of heat-resistant materials,by investigating the application of heat-resistant protective clothing and the principle of thermal protection,a set of optimal inequalities equations was designed as a constraint condition to solve the reasonable optimization interval of materials with different thicknesses.Taking into account the material cost and the protective performance of the protective clothing itself,thermal resistance was introduced,and the optimal thickness solution of the heat-resistant material was obtained,which provides an analytical ide...