Computational model for armor penetration. Annual report No. 3, October 1980-April 1983

Technical Report · Thu Oct 01 00:00:00 EDT 1987

OSTI ID:7158946

Erlich, D C; Seaman, L; Cooper, T; Caligiuri, R D; Curran, D R

This is the first volume of a two-volume series comprising the third annual report for the program Computational Model for Armor Penetration. The objective of the program was to develop a phenomenologically sound material-disintegration model for computationally simulating armor penetration by projectile impact. The model would provide the capability to predict the ballistic limit and downrange fragment size and velocity distributions and would eventually be used by the DoD for armor and penetrator design. The materials studied in the program were 4340 steel and depleted uranium alloy, (DU) for the penetrators, and rolled homogeneous armor (RHA) for the target. This Volume reports on the experimental and analytical work performed during the third year to conclude the development of a computational model, SHEAR3, that describes the dominant material failure and fragmentation process (adiabatic shear banding) responsible for long-rod penetrator erosion and thick armor plate plugging and fragmentation. Volume 1 also describes application of SHEAR3 with the Lagrangian wave propagation code C-HEMP to computationally simulate penetration of armor plate by normally impacting long rods both near the ballistic limit and at higher velocities sufficient to produce significant back-of-the-armor fragmentation.

• Research Organization: SRI International, Menlo Park, CA (USA)
• OSTI ID: 7158946
• Report Number(s): AD-A-190757/5/XAB
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
36 MATERIALS SCIENCE
ARMOR
MATERIALS TESTING
DEPLETED URANIUM
PENETRATORS
STEELS
URANIUM ALLOYS
COMPUTERIZED SIMULATION
DISTRIBUTION
FRAGMENTATION
MATHEMATICAL MODELS
PLUGGING
PROGRESS REPORT
PROJECTILES
RODS
SHEAR PROPERTIES
THICKNESS
VELOCITY
ACTINIDE ALLOYS
ACTINIDES
ALLOYS
DIMENSIONS
DOCUMENT TYPES
ELEMENTS
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
METALS
SIMULATION
TESTING
URANIUM
420500* - Engineering- Materials Testing
360103 - Metals & Alloys- Mechanical Properties