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):

Report Date:

1989-12-01

Pagination or Media Count:

25.0

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 ms 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.

Subject Categories:

  • Ballistics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE