Accession Number:

ADA276670

Title:

Adding Stochastic Behavior to Deterministic Simulation Package HULL

Descriptive Note:

Progress rept. Oct 1992-Sep 1993

Corporate Author:

ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Report Date:

1994-01-01

Pagination or Media Count:

37.0

Abstract:

A study to investigate the stochastic variation in material failure mechanics of a typical high hardness armor HHA against tungsten penetrator problems was conducted. The HULL package was modified for simulation studies, and results from two different sets of calculations, each with a different randomness level, showed a relationship between the final lengths between stations and the prescribed randomness. Since higher percent deviation is likely associated with the higher failure rate of the target material, thus, at lower percent deviations, there is less penetration into the target and more compression of the penetrator, resulting in a smaller final length. Hence, the relationship seems to be a result of the compressive state of the penetrator rather than a result of its erosion. This relationship is likely to be present also in a more rigorous calculation with a Lagrangian-based formulation.

Subject Categories:

  • Computer Programming and Software
  • Armor
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE