A SIMPLIFIED MODEL FOR LONG TUBULAR PENETRATION INTO OBLIQUE FINITE HOMOGENEOUS TARGET

The experiments of long tubular penetration into oblique homogeneous target are carried out. On basis of the penetration mechanism, a simplified model for the long tubular penetration into oblique finite homogeneous target isestablished. The patterns of the penetration are described. The motions of the long tube and the external forces are analyzed. The cutaway views of the crater are much similar to those of the long rod, but with two obvious ``horns'' in the back and front of the target, respectively. The variationsof the residual velocity with the initial velocity are obtained. The theoretical results agree with experimental data well in the limit velocity, which validates the model established for the penetration course.