摘要
利用声发射试验系统和CT试样，对HTPB推进剂I型裂纹断裂韧性进行实验研究。通过研究复合固体推进剂的声发射事件特性和裂纹扩展特性的关系，得到一种由振铃计数确定临界载荷的方法，该方法能准确求得断裂韧性。
In this paper, a model I fracture toughness of HTPB composite solid propellant was studied by using acoustic emission experiment system and CT sample. A method of determine critical load was obtain through studying the correlation between acoustic emission characteristics and their crack propagation characteristics , the method can accurately get fracture toughness .
出处
《宇航学报》
EI
CAS
CSCD
北大核心
2006年第B12期186-189,共4页
Journal of Astronautics
关键词
固体推进剂
裂纹
声发射
断裂韧性
Solid propellant
Crack
Acoustic emission
Fracture toughness
