Numerical Simulation of Triple-Layer Reactive Composite EFP Formation and Penetrating Interval Target

In order to study the formation and penetration behavior of triple-layer reactive composite EFP, numerical simulation method is used to describe the formation and penetration process, and reveals the influence of blasting height on the formation and penetration. The numerical simulation results show that the formation process of the reactive composite EFP includes impact, boost and stretching flight stages. The impact stage: under the impact of detonation wave and detonation product, the outer, middle and inner liners collide with each other, kinetic energy exchange occurs during the process, and finally they are adhered to each other. The boost stage: the detonation wave and detonation products continue to promote the overall flight of EFP, and they begin to disappear gradually. The stretching flight stage: after the external impetus disappeared, the reactive composite EFP continues to fly by its own inertia and gradually stretches. The blasting height has a great influence on the formation and penetration behavior of reactive composite EFP. The results have certain reference significance for the study of triple-layer reactive composite EFP.