AIR CRATERING BY ERODING SHAPED CHARGE JETS

摘要

Air cratering by shaped charge jets is calculated using two very different penetration rate and crater radius models. Comparison of calculations to experimental data demonstrates that both models produce penetration results representative of data from experiments. Calculations also show that jet erosion proceeds within a very thin layer to produce jet debris suitable for rapid combustion at the crater interface - the process producing the fiery tails that have long been observed during shaped charge experiments. However, the crater radius formulas are greatly different with little experiment data available from which to validate them or to choose which is better.