Research Progress on Failure Analysis of SRM Charge Structure

In the whole life cycle of SRM, it has to bear many kinds loads, such as temperature, gravity, vibration, ignition impact, axial overload and so on. Under these damage aging will occur in SRM propellant grain, creep effect under gravity expand even change grain shape. addition, bonding interface charge structure may be deboning, combustion leads increase failure surface, which seriously weakens performance lead explosion. Based on mode, mechanism criterion experimental research methods, numerical simulation methods theory analysis are described detail. The conclusion important reference significance for analysis.