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