Experimental study on external strong magnetic fields coupling with the shaped charge jet

In this paper, the effect of an external magnetic field on a jet produced by a Ø 56 mm shaped charge was evaluated using the depth of penetration (DOP) test method. A standoff of 650 mm (11.61 CD) was used in the experiments. The shaped charge jet could undergo formation, elongation, breakup, rotation, and drift under this standoff. The initial energy was provided by a capacitor that was loaded into the solenoid to generate a magnetic field to couple with the jet. The initial voltage at both ends of the capacitors was 20.4 kV, and the discharge current of the circuit and magnetic induction intensity were analyzed. Experimental results indicated that a strong external magnetic field could enhance the stability of the jet and increase its DOP. The penetration ability of the jet is increased by 72.4% under the influence of the external magnetic field.