Penetration of Tungsten Alloy Rods into Shallow-Cavity Steel Targets
Abstract
This report presents a combined numerical and experimental study on penetration of tungsten heavy alloy long rods (L/D=10) into thick RHA steel plates. The main objective of this study was to establish the effects of a shallow cavity at the front surface of the steel plate on the depth penetration (DOP). In the experiment, two target configurations were considered: one, a 127 mm flat thick plate, and the other, a 152 mm thick plate with a 25.4 mm deep and 19 mm diameter cavity. In both cases, the plate thickness was effectively 127 mm. Three experiments were performed at 1.5 km/sec on the shallow-cavity targets. These results were compared to existing penetration data obtained for flat plates over a velocity range of 1.1 to 1.7 km/sec. Based on the experimental results, the effect of the shallow cavity wall constraint on the penetration process was found to be insignificant. This experimental observation was predicted by numerical simulations before testing. Two different cavity diameters as well as the flat plate, were considered in the simulations. The code results matched the measured depths of penetration within the limits experimental accuracy for all configurations examined. We also evaluated the effects of mesh and time step on the computational results. Terminal ballistics, Modeling, Simulation, Penetration, Steel, Long rod penetrators.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1993
- Accession Number
- ADA269451
Entities
People
- A. M. Rajendran
- Patrick Woolsey
Organizations
- United States Army Research Laboratory