Fully Automatic Rezoning for Finite-Element Hydrocodes

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$546,644.00
Award Year:
1997
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
32353
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Dyna East Corp.
3620 Horizon Drive, King Of Prussia, PA, 19406
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr. William J. Flis
(610) 270-9900
Business Contact:
() -
Research Institution:
n/a
Abstract
We propose to develop automatic rezoning algorithms for general-purpose 2-D and 3-D Lagrangian hydrocodes. Rezoning allows treatment of ballistic problems involving very large deformations, such as warheads and penetrations. Unlike erosion techniques, rezoning allows continued modeling of failed material. A previously developed and demonstrated 2-D rezoning algorithm will be extended to 3-D through a structure programming approach. In Phase I, we will recode the current 2-D version into modular form, and define specifications for these modules. This algorithm will be implemented in the EPIC-2 hydrocode, and demonstrated with several test problems, including warhead functioning and deep penetration. Then, we will define specifications for 3-D versions of the modules, with an outline of the scheme for each module. Phase II will complete the development of the 3-D rezoner, which will be implemented in the EPIC-3 hydrocode.

* information listed above is at the time of submission.

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