Impact Velocity as a Function of Explosive Length

Fig 1) Critical impact velocity as a function of explosive length, for 6-inch diameter 9404 PBX billets impacted by 6-inch diameter by 1-inch thick steel plates 

Some numerical data are given forTri-tonal,H-6 and 9404 PBX explosives. As an example the Fig 21 (p 474) is shown here 

Green G.D. Dorough, Further Studies on the Ignition of Explosives , 

Fig 23 shows the deformation obtd soon after impact. The end of the AI nose cap has opened up, but the longitudinal section of the cap has not yet split open. Fig 24 shows the deformation late in the impact. The Al cap has completely failed by longitudinal splitting, and the steel rim of the projectile body is in near contact with the target plate. This is called the pinch stage and the most violent reactions from a Susan type impact 

For comparison with Susan Test, Fig 25 shows variations of an anvil-driver impact test first described by Napadensky et al (See ref 42a). As conducted by Green Dorough, the driver plate was a mild steel plpte, 8-inch diameter 1-inch thick and the target (anvil) a 10-inch square plate, of. mild 

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