Improvement of the shaped charge jet penetration capability by modifying the liner form using AUTODYN-2D

Abstract

In order to enhance the penetration capability of the shaped charge jet, different liner forms are used. These modifications help to increase the jet tip velocity, as well as to improve the distribution of the kinetic energy. AUTODYN software is used to perform these numerical simulations. Euler solver of the AUTODYN is used to simulate the jet formation and Lagrange solver is used for penetration problem. Numerical results have good agreement with the available experimental results from the literature. For the same charge calibre and main charge length, several liner forms as conical, circle and trumpet are investigated. Results show that the trumpet form has a higher penetration capability than other forms. Distribution of kinetic energy along the liner with variable liner thickness is more suitable to get higher cumulative jet efficiency on the target.

Keywords

• shaped charge
• liner form
• autodyn
• numerical simulation
• jet