Pressure/strain and pressurization rate/strain rate are linear correlation during the ignition transient.And the coefficient is the initial modulus of composite solid propellants.

• 分析表明点火瞬态过程中压强与推进剂应变、升压速率与推进剂应变速率之间呈线性关系,线性系数均为推进剂初始模量。