Three-Dimensional Analysis of Penetration into Geological Media.
Technical rept. 25 Apr 91-1 Dec 94,
SCIENCE APPLICATIONS INTERNATIONAL CORP MCLEAN VA
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The Defense Special Weapons Agencys Conventional Weapons Effects Program requires state-of-the-art analysis of penetrator-target interaction. Science Applications International Corporation SAIC has conducted a program that applies sophisticated Eulerian codes to accurately capture the physics of the penetration process. Penetration events are an important aspect of the interaction of non-nuclear munitions with structures. The penetrator exhibits near rigid body motion, at velocities below a few thousand feet per second, as it moves through the target producing a material boundary layer between the outer surface of the penetrator and the target material. These effects require codes that can maintain distinct material boundaries while advecting a solid with an attached boundary layer. In general they can be simulated using both Lagrangian and Eulerian hydrocodes, but we have shown the robustness of using Eulerian codes for simulating the penetration event.
- Numerical Mathematics
- Computer Systems Management and Standards
- Ammunition and Explosives