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Strain Rate and Temperature Effects of the JOXL-1 Explosive
Propellants, Explosives, Pyrotechnics ( IF 1.8 ) Pub Date : 2022-07-08 , DOI: 10.1002/prep.202200013
Xintao Zhu 1 , Xiaojing Zhang 1 , Wenbin Li 1 , Wenjin Yao 1
Affiliation  

To determine the influence of temperature and strain rate on the mechanical behavior of JOXL-1 explosive, the stress-strain curves of JOXL-1 explosive at different temperatures (233 K-473 K) and different strain rates (110 s−1-400 s−1) were measured using a split Hopkinson pressure bar (SHPB) experimental system with a temperature control device. The results show that the dynamic mechanical properties of this explosive are sensitive to the strain rate and temperature in the experimental temperature range. The failure stress increases with increasing strain rate and decreases with increasing temperature. The failure strain increases with increasing strain rate, but it is almost unaffected by temperature. The DSC analysis shows that the JOXL-1 explosive has good thermal stability when the temperature is lower than 391.37 K and that binders in the explosive gradually decompose when the temperature is higher than 391.37 K.

中文翻译:

JOXL-1 炸药的应变率和温度效应

为了确定温度和应变率对JOXL-1炸药力学行为的影响,JOXL-1炸药在不同温度(233 K-473 K)和不同应变率(110 s -1 -400 s -1) 使用带有温度控制装置的分离式霍普金森压力棒 (SHPB) 实验系统进行测量。结果表明,该炸药的动态力学性能在实验温度范围内对应变率和温度敏感。破坏应力随着应变率的增加而增加,随着温度的升高而减小。失效应变随着应变率的增加而增加,但几乎不受温度的影响。DSC分析表明,JOXL-1炸药在温度低于391.37 K时具有良好的热稳定性,当温度高于391.37 K时炸药中的粘合剂逐渐分解。
更新日期:2022-07-08
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