Shock-induced reaction behaviors of functionally graded reactive material  

作　　者：Ying Yuan Zhen-yang Liu Suo He Chao Ge Qing-bo Yu Yuan-feng Zheng Hai-fu Wang 

机构地区：[1]Beijing Institute of Technology,State Key Laboratory of Explosion Science and Technology,Beijing,100081,China

出　　处：《Defence Technology（防务技术）》2021年第5期1687-1698,共12页Defence Technology

基　　金：National Natural Science Foundation of China[grant number U1730112],China.

摘　　要：In this paper,the ballistic impact experiments,including impact test chamber and impact double-spaced plates,were conducted to study the reaction behaviors of a novel functionally graded reactive material(FGRM),which was composed of polytetrafluoroethylene/aluminum(PTFE/Al)and PTFE/Al/bismuth trioxide(Bi_(2)O_(3)).The experiments showed that the impact direction of the FGRM had a significant effect on the reaction.With the same impact velocity,when the first impact material was PTFE/Al/Bi_(2)O_(3),compared with first impact material PTFE/Al,the FGRM induced higher overpressure in the test chamber and larger damaged area of double-spaced plates.The theoretical model,which considered the shock wave generation and propagation,the effect of the shock wave on reaction efficiency,and penetration behaviors,was developed to analyze the reaction behaviors of the FGRM.The model predicted first impact material of the FGRM with a higher shock impedance was conducive to the reaction of reactive materials.The conclusion of this study provides significant information about the design and application of reactive materials.

关 键 词：Functionally graded reactive material PTFE/Al Reaction behavior Ballistic impact experiments Reaction efficiency 

分 类 号：TQ560.1[化学工程—炸药化工]