低温和应变率对HTPB推进剂压缩力学性能影响OA北大核心CSCDCSTPCD
Effects of low temperature and strain rate on compressive mechanical properties of HTPB propellant
采用单轴压缩实验方法,分析了低温(-40～25℃)和应变率(1/300 ～ 1/12 s-1)对HTPB推进剂压缩力学性能的影响,得到了不同温度和应变率条件下推进剂的压缩应力-应变关系.结果表明,推进剂压缩强度和压缩模量随温度的降低和应变率的增加而逐渐增加,且均与应变率具有良好的线性对数关系(lg[σ·k(T)]=a+blgε和lg[E·f(T)]=c+dlgε),利用该关系式可对推进剂压缩力学性能进行预测.通过双因素方差分析表明,低温和应变率均…查看全部>>
Compressive mechanical properties were obtained and stress-strain plots were analyzed by means of uniaxial compression tests, which were performed at different strain rate ( 1/300 ~ 1/12 s-1 ) and temperature( -40~25 ℃ ) on HTPB propellant. The results show that compression stress and compression modulus increase gradually with decreasing temperature and increasing strain rate, and present linear-log function relation with strain rate ( and ) , which could b…查看全部>>
赖建伟;常新龙;龙兵;张有宏;方鹏亚
第二炮兵工程大学,西安710025第二炮兵工程大学,西安710025第二炮兵工程大学,西安710025第二炮兵工程大学,西安710025第二炮兵工程大学,西安710025
航空航天
HTPB推进剂低温应变率压缩力学性能
HTPB ( hydroxy-terminated polybutadiene binder) propellantlow temperaturestrain ratecompressive mechanical properties
《固体火箭技术》 2012 (6)
792-794,798,4
评论