Study on the effect of off-axis initiation on the jet forming process and armour-breaking performance of shaped charges

Abstract To study the effect of off-axis initiation on shaped charge performance. The nonlinear finite element software LS-DYNA is used to simulate jet forming and armour-breaking process under different offsets (0.025~0.125D k , D diameter). A theoretical model established analyse lateral velocity distribution jet. results show that degree asymmetric collapse increase with offset. When offset exceeds 0.025D penetration capability will be seriously weakened.