温度相依固体推进剂的蠕变损伤模型

CREEP DAMAGE MODEL OF SOLID PROPELLANT COUPLED WITH TEMPERATURE PHASE

针对复合固体推进剂材料,建立了与温度相耦合的蠕变损伤演变模型,进行了单轴和双轴条件下蠕变破断试验,确定了材料参数.该模型对复合固体推进剂的应力分析、寿命预估具有应用价值.

For solid propellant, a creep damage evolution model coupled with temperature phase has been established. The creep fracture is tested under uniaxial and biaxial conditions lo determine propellant parameters. The model has an a practical value for stress analysis and life prediction of composite solid propellants.