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Criteria and evaluation of ballistic sensitivity of explosive reactive armor
Marinko Ugrčić, Phd
A theoretical analysis of the physics of the initial phase of interaction between explosive reactive armor and a shaped charge jet, i.e. of an armor piercing projectile, is accomplished. The final issue of this phase, which qualitatively determines the farther course of the interaction process, depends primordially on the explosive charge sensitivity in this armor. The main significant parameters of initiation process of explosive reactive armor are considered. The results of the experimental testing of the explosive reactive armor sensitivity, during interaction with a shaped charge jet and kinetic penetrator (armor piercing projectile) are given. The theoretical evaluation of the explosive sensitivity in this armor by modified Walker-Wesley criterion of the initiation is accomplished and some calculated interaction parameters, like the position of the initiation zone and time of initiation, are compared with relevant experimental results.
Key words: explosive reactive armor, explosive sensitivity, shaped charge jet, armor piercing projectile, criterion of initiation
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