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Title: Deceleration of projectiles in snow
Authors: Albert, Donald G.
Richmond, Paul W.
Keywords: Centrifuge
Centrifugal force
Penetration tests
Mortar shells
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: CRREL report ; 82-20.
Description: CRREL Report
Abstract: Instrumented M374 projectiles were launched into snow, nylon, and Styrofoam targets using a 10. 7-m radius centrifuge. For snow of 410-kg/m^3 density, the 3.1-kg test projectile experienced decelerations of approximately 220, 400, and 550 m/s^2 (at a depth of 0.1 m) for initial impact velocities of 15, 30 and 46 m/s respectively. These values disagree with values predicted from a simple hydrodynamic drag force approximation. The decelerations measured for snow targets were always greater than those measured for nylon shaving targets (of density 120 kg/m^3) indicating that this material is not a good analog for snow of the density used in these tests.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:CRREL Report

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