Eccentric Liner in the Amelioration of EFP Warhead Design with Embedded Feed Structure

The terminal-sensitive ammunition fitted with a central feedback layout for millimeter wave sensitive system needs to be embeded with some sensitive devices in the charge of EFP (Explosively formed penetrator) warhead, resulting in changing the charge structure, affecting observably the detonation wave propagation, and producing significant negative effects on the shaping process of EFP.In order to get a large L/D ratio of the penetrator, we proposed to use an eccentric spherical liner structure to adjust the thickness of the liner, which successfully changed the pressing process of the liner and made it turn backwards.The experimental shape parameters and speed indicators basically meet with the predicted results of the numerical simulation.With the eccentric spherical liner, EFP warhead can be formed with a large L/D ratio and good flight stability.This design removes the negative effects produced on the warhead shaping by the embeded sensitive devices.