Solid rocket engine bonding interface aging and creep damage test method and coupling model

The invention relates to a solid rocket engine bonding interface aging and creep damage test method and a coupling model, and the method comprises the steps: designing a bonding interface test piece, carrying out bonding interface test piece creep tests after different aging temperatures and test time, obtaining holding load time under different creep stresses, introducing creep parameters considering the aging temperatures and time, and determining the bonding interface aging and creep damage of a solid rocket engine. And establishing a model of creep damage model parameters changing along with aging temperature and time to obtain a bonding interface aging and creep damage coupling model. The invention provides a test method and a model for characterizing the degradation process of the bonding interface under the action of aging and gravity load factors, and provides a basis for evaluating the damage of the bonding interface. 本发明涉及一种固体火箭发动机粘接界面老化、蠕变损伤试验方法及耦合模型，包括：设计粘接界面试验试件，开展进行不同老化温度、试验时间后粘接界面试件蠕变试验，得到不同蠕变应