Finite Element Solution of Transient In-Bore Response Problems,
ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD
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Many interesting aspects of mathematical and numerical modeling come to bear in solving dynamic structural response problems concerning gun launches of projectiles. A cooperative effort between BRL and LANL has been underway for several years now on 3D transient modeling of tank gun-launched saboted-rod kinetic energy KE projectiles. The focus of this work has been on numericalexperimental investigations to better understand the transient behavior of KE rounds during in-bore travel. We believe that improved knowledge of this behavior will lead to improved designs of KE projectiles and improve accuracy on targets. Because formal mathematical solutions of such complex large-scale modeling problems are impractical, approximate but accurate solutions are being sought by means of the Finite Element FE Method. Numerical simulations are being carried out with the DYNA2D, DYNA3D, and PRONT03D nonlinear transient FE codes, together with their respective pre- and post-processor software.
- Nuclear Weapons