DEVELOPMENT OF AN EULERIAN FINITE ELEMENT CODE

Award Information
Agency: Department of Defense
Branch: Defense Threat Reduction Agency
Contract: N/A
Agency Tracking Number: 5987
Amount: $497,859.00
Phase: Phase II
Program: SBIR
Awards Year: 1989
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Intelligent Systems Integratio
3801 Eubank Ne, Albuquerque, NM, 87111
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Dr Timothy J Ross
 (505) 242-1152
Business Contact
Phone: () -
Research Institution
N/A
Abstract
CURRENT NUMERICAL COMPUTATIONS TO DESCRIBE NUCLEAR GROUND SHOCK ENVIRONMENTS, NUCLEAR CRATER FORMATION, IMPACT DYNAMICS AND PENETRATION MECHANISMS PRESENTLY EMPLOY EULERIAN-BASED FINITE DIFFERENCE CODES BECAUSE OF THEIR ABILITY TO MODEL THE MASS FLUX PHENOMENA IN TRACKING MATERIAL MOVEMENT THROUGH THE DISCRETIZED SPACE. THE FINITE DIFFERENCE CODES SUFFER IN COMPARISON TO FINITE ELEMENT CODES, HOWEVER, IN THEIR ABILITY TO TREAT IRREGULAR GEOMETRIES AND VARIATIONS IN BOTH MESH SIZE AND ELEMENT SHAPE. BUT, BECAUSE FINITE ELEMENT CODES ARE LAGRANGIAN-BASED, MODELING OF MASS FLOW IS EXCEEDINGLY DIFFICULT AND IS NOT PRESENTLY PRACTICED. THIS PROBLEM CAN BE OVERCOME BY ELIMINATING THE INABILITY OF FINITE ELEMENT CODES TO ACCOMMODATE MASS FLUX PHENOMENA.

* information listed above is at the time of submission.

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