Accession Number : ADP006598

Title :   Finite Element Solution of Transient In-Bore Response Problems,

Corporate Author : ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Bannister, Kenneth A. ; Wilkerson, Stephen A. ; Rabern, Donald A.

Report Date : MAR 1992

Pagination or Media Count : 14

Abstract : 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 numerical/experimental 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.

Descriptors :   *STRUCTURAL RESPONSE, *TRANSIENTS, *KINETIC ENERGY PROJECTILES, *SABOT PROJECTILES, *FINITE ELEMENT ANALYSIS, ACCURACY, BEHAVIOR, BORES, DYNAMICS, GUN LAUNCHED, GUNS, KINETICS, PROJECTILES, RESPONSE, RODS, SCALE, SIMULATION, TANK GUNS, TARGETS, TRAVEL, WORK.

Subject Categories : Nuclear Weapons

Distribution Statement : APPROVED FOR PUBLIC RELEASE