Based on an effective nonlinear viscoelastic model, the differential constitutive equation and strain-rate equation of solid composite propellants are induced.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.
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钟涛,张为华,王中伟.点火瞬态过程对复合固体推进剂力学响应特性的影响. Influence of the Ignition Transient on the Mechanical Response ofComposite Solid Propellants[J].国防科技大学学报,2004,26(3):7-10.