Estimating the metal acceleration ability of high explosives  

作　　者：Dany Frem 

机构地区：[1]Frem Co.,Beirut,Lebanon

出　　处：《Defence Technology（防务技术）》2020年第1期225-231,共7页Defence Technology

摘　　要：The Gurney method is widely used in the conceptual design stage of explosive fragmentation warheads employed in various weapons systems.This method states that the peak fragment velocity(V_0) is a function of the Gurney velocity((2E_G)^(1/2)) and the charge-to-metal weight ratio(C/M).The current study is concerned with finding a practical approach for computing the Gurney velocity of pure and mixed high explosives which will eventually help warhead designers to select the best explosive to fulfill the needs of a particular mission.Using multiple regression analysis technique,a four-variable model was derived and used thereafter to estimate the Gurney velocity of aluminized and non-aluminized explosive formulations.The results show that the new model is particularly accurate in predicting the Gurney velocity of combined effects explosives,which are relatively a new class of high blast,high metal acceleration capability explosive compositions.

关 键 词：Gurney VELOCITY High explosives Aluminized explosives COMBINED effects explosives FRAGMENTATION warheads 

分 类 号：TQ560.1[化学工程—炸药化工]