Similarity Theory Applied in Projectile Penetrating Into Concrete Target and Deflection Analysis

Projectile penetration into concrete is a very complicated question.It is applicable to use scale model in the experiment in such research.The similitude rules of projectile penetrating into concrete thick sheet have been studied using dimension analysis method and similitude theory.The similarity of different scale projectile penetration into concrete is studied under simulative test.The result show that there is an approximate linear relation between depth and speed as projectile at high speed penetrates into concrete.Reasons are suggested of similarity is not strictly adherence to the procedures of projectile penetrations into concrete.