Fully Automatic Rezoning for Finite-Element Hydrocodes

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 32353
Amount: $546,644.00
Phase: Phase II
Program: SBIR
Awards Year: 1997
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
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr. William J. Flis
 (610) 270-9900
Business Contact
Phone: () -
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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