固体火箭技术Issue(1)：86-89,106,5.DOI:10.7673/j.issn.1006-2793.2015.01.016
HTPB推进剂低温裂纹扩展特性试验研究
Experimental study on low temperature crack growth behavior of HTPB propellant
常新龙 1龙兵 1胡宽 1方鹏亚 1赖建伟2
作者信息
- 1. 第二炮兵工程大学，西安 710025
- 2. 中国人民解放军96171部队，江山 324109
- 折叠
摘要
Abstract
Mode Ⅰ crack growth experiment at different temperatures was conducted by using the center⁃cracked sheet test samples,and the effect of temperature on crack growth behavior in HTPB propellant was investigated.The crack growth rates under different temperatures were calculated by using modified secant method,and the crack growth resistance curves were obtained.A lin⁃ear regression analysis was used to determine the functional relationship between the crack growth rate and the modeⅠstress inten⁃sity factor.The results show that the crack growth rate at low temperature is higher than that at normal temperature.Moreover,the low⁃er the temperature is,the quicker the crack initiation would be.A power law relationship exists between the crack growth rate and the Mode Ⅰ stress intensity factor under different temperatures.关键词
HTPB推进剂/裂纹扩展速率/低温/Ⅰ-型应力强度因子/裂纹扩展阻力曲线Key words
HTPB propellant/crack growth rate/low temperature/modeⅠstress intensity factor/crack growth resistance curve分类
航空航天引用本文复制引用
常新龙,龙兵,胡宽,方鹏亚,赖建伟..HTPB推进剂低温裂纹扩展特性试验研究[J].固体火箭技术,2015,(1):86-89,106,5.
