火炸药学报2012，Vol.35Issue(3)：80-83,4.
HTPB推进剂的低温力学性能
Low Temperature Mechanical Properties of HTPB Propellant
摘要
Abstract
In order to investigate low temperature mechanical property characteristics of HTPB (hydroxy-terminated polybutadiene binder) propellant, the low temperature and room temperature uniaxial tensile tests after short term storage at low temperature were conducted and SEM (scanning electron microscopy) was used to observe tensile fracture surfaces. Mechanical property data and stress-strain plots obtained were analyzed. The results show that matrix tearing and particle brittle fracture occur in propellant with low temperature tensile test o but only particle/ matrix interface de-wetting with room temperature tensile test. Low temperature stress-strain plots of propellant appear obvious yield stage,showing that the yield degree is involved to the low temperature value. The low temperature mechanical properties such as maximum tensile stress, elastic modulus and strain at maximum stress against temperature are different with room temperature mechanical properties.关键词
材料科学/HTPB推进剂/扫描电镜/力学性能Key words
materials science/ HTPB (hydroxy-terminated polybutadiene binder)propellant/SEM(scanning electron microscope)/ mechanical properties分类
军事科技引用本文复制引用
赖建伟,常新龙,龙兵,孙涛,方鹏亚,张有宏..HTPB推进剂的低温力学性能[J].火炸药学报,2012,35(3):80-83,4.基金项目
陕西省自然科学基金资助(2011JQ6007) （2011JQ6007）
