Three experiments with two types of small-scale laboratory shaped charges (SC) were doneand analyzed based on the assumption that parameters which influence the deceleration ofSC particles in air at large stand-offs (SO), e.g. the drag coefficient c_D, can be expressed asan average deceleration coefficient. Two velocity-distance data pairs for each particle weregathered by means of flash X-rays at intermediate SO and by high-speed video cameras atlarge SO. From those data, average deceleration coefficients were calculated. The valuesmainly ranged from 17-88 km~(-1), respectively 3-25 km~(-1), for the two different SC types. Theresults were in agreement with estimates based on the aerodynamic properties of basicshaped bodies. With the method and results, safety ranges or residual penetrationperformance of SC particles at large SO can be estimated in laboratory tests.
展开▼
