丁羟推进剂定载破坏试验探索研究

Study on the Fracture of HTPB Propellant at Constant Load

研究了丁羟推进剂在定载荷下断裂所需时间与推进剂本身抗拉强度的关系，并且给出了环境温度和湿度、试件大小、形状和制作方法对推进剂断裂所需时间的影响，为固体火箭发动机药柱设计提供了参考数据。

The relationship between the fracture time and the tensile strength on HTPB propellant was studied.The effects of environmental temperature and humidity,the size,shape and preparing method of the specimen on fracture time were evaluated.The result is available for the propellant grain design of solid rocket motor.