Accession Number : ADA214380

Title :   EPIC-2 Calculated Impact Loading History for Finite Element Analysis of Ballistic Shock.

Descriptive Note : Technical rept.,

Corporate Author : ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Quigley, Ennis F.

Report Date : DEC 1989

Pagination or Media Count : 19

Abstract : Although the EPIC-2 code can predict the ballistic shock environments in projectile-impacted targets, these targets must be axisymmetric. By modifying the code one can calculate the target loading history which can be used as input for a finite element analysis of the ballistic shock in normal impacted, non-axisymmetric targets. The loading history of a 20 mm fragment simulator projectile with an impact velocity of 1508 m/s on a 914 mm x 70 mm thick circular rolled homogeneous armor plate has been calculated by the EPIC-2 code and has been used in an ADINA finite element analysis of the plate. Comparisons of the EPIC-2 and ADINA response calculations show that the EPIC-2 calculated loading history can be used as loading input for finite element ballistic shock analysis. Keywords: EPIC-2; ADINA; Penetration mechanics; Ballistic impact; Shock; Loading histories; Shock spectra; Computer simulation; Hydro-code; Finite element code. (kt)

Descriptors :   *TERMINAL BALLISTICS, *SHOCK WAVES, COMPUTERIZED SIMULATION, SHOCK(MECHANICS), LOADS(FORCES).

Subject Categories : Ballistics

Distribution Statement : APPROVED FOR PUBLIC RELEASE