Penetration Performance of Tungsten Alloy Penetrators with L/D Ratios of 1 to 1/32

A combined experimental and computational investigation was conducted to determine the terminal ballistic performance and transient behavior of low L/ D (length/diameter ratio) tungsten alloy penetrators impacting normal incidence rolled homogeneous armor (RHA) targets at 2 km/s. Each penetrator had...

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Bibliographische Detailangaben
Hauptverfasser:	Bjerke, Todd W, Zukas, Jonas A, Kimsey, Kent D
Format:	Report
Sprache:	eng
Schlagworte:	Ammunition and Explosives AMMUNITION DAMAGE Armor ARMOR PIERCING AMMUNITION ATTITUDE(INCLINATION) Ballistics CODING COMPUTATIONS COMPUTERIZED SIMULATION CRATERS CTH COMPUTER PROGRAM DEPTH DIAMETERS EXPERIMENTAL DATA GUN LAUNCHED HIGH DENSITY IMPACT KINETIC ENERGY PROJECTILES LAGRANGIAN FUNCTIONS LENGTH LOW LENGTH DIAMETER RATIO MATERIALS NUMERICAL ANALYSIS PE62618A PENETRATION PENETRATORS RATIOS RESIDUALS ROLLED HOMOGENEOUS ARMOR SABOT PROJECTILES SMASH COMPUTER PROGRAM TERMINAL BALLISTICS TRANSIENTS TUNGSTEN ALLOYS VELOCITY
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Beschreibung
Zusammenfassung:	A combined experimental and computational investigation was conducted to determine the terminal ballistic performance and transient behavior of low L/ D (length/diameter ratio) tungsten alloy penetrators impacting normal incidence rolled homogeneous armor (RHA) targets at 2 km/s. Each penetrator had a nominal diameter of 25.4 mm, and an L/D of either 1. 1/2, 1/4, 1/8, 1/16, or 1/32. Experiments were performed using a 50-mm high pressure powder gun and a push- launch sabot. Data collected consisted of penetrator attitude and velocity at impact, depth of penetration, crater diameter, and limited information regarding residual penetrator material. Numerical simulations of each of the penetrators impacting RHA were performed with the Lagrangian code SMACH and the Eulerian code CTH. Both codes exhibited good agreement with experimental data. Errata sheet inserted.