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Analysis of Following Projectile Effected by Precursory Charge of Tandem Warhead

WANG Shu-you,CHEN Hui-wu,ZHAO You-shou (School of Mechanical Engineering,Nanjing University of Science & Technology,Nanjing 210094,China)  
To judge explosive stability and estimate speed reducing of the following projectile of tandem warhead under the blast of the precursory charge,a theoretical analysis model of the one-dimension shock wave spreading is established.Incidence pressure of the explosive of following projectile is obtained through diagram.The explosive safety is estimated through comparing incidence pressure with critical pressure of initiation.By use of momentum theorem,the formula of speed reducing of secondary KE projectile is set up.Numerical simulation of tandem warhead is conducted.The results of incidence pressure of the explosive of following projectile and speed reducing of secondary KE projectile are obtained.The deformation diagram of following projectile of numerical simulation is in good agreement with that of experiment.
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