A Simulation Study of Controlling the Movement of Jets Slug

Abstract

A device was designed to form the shaped charge jets without slug based on the structure of 56mm shaped charge, and the movement of slug was under controlled through the use of this device. A numerical simulation of the shaping of jets under the structure of shaped charge was carried out by LS-DYNA. On the premise of the device wall thickness 1mm, the angle of middle part and the height of the lower part, here the 2 structural parameters of the blocking slug device are considered as the factors affecting the shaping of the jets without slug. Through simulation, the best structural parameters of the device are as follows: 45 degree of the inclination of the middle part and 0mm of lower part. Under this structural parameter, the device can make shaped charge fully molded without slug.