Nonlinear response functions of the burning rate of RDX and HMX

Nonlinear response functions of the burning rate to pressure oscillations are calculated for RDX and HMX in a quadratic approximation. Values of the burning surface temperature of HMX and RDX and the sensitivities of the burning rate and surface temperature to the initial temperature and pressure are given. A statistical analysis of the measurement and calculation errors is performed. The characteristics of the nonlinear response functions are considered. Some issues of the physics of combustion of nitramines are briefly discussed.