Accession Number:

ADA090382

Title:

The Particle Dynamics of Penetration

Descriptive Note:

Corporate Author:

ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s):

• Dehn, James

Report Date:

1980-06-01

Pagination or Media Count:

12.0

Abstract:

Mathematical modeling of the target penetration process is an old field and the great variety of models we now have reflects this fact. At one end of the model spectrum we have simple empirical interpolation formulas which can serve as convenient summaries of what we know already, though they cannot further our understanding. At the other extreme we have very complicated continuum models which include all the science we think is appropriate and offer the possibility of prediction without further experimentation. However, such advanced models have a number of shortcomings at present. On the one hand, many of the material properties needed to implement them have not been measured, while on the other, the numerical methods used in solving the equations involved are not yet sufficiently advanced to provide either rapid or routine calculational tools. Consequently, they have not yet improved our understanding of penetration very much, at least in the ordnance range. Between these two extremes there are a number of intermediate approaches which are based on simplified physical laws and so offer the possibility of improved understanding together with a calculational tool which can be routine, rapid and reliable.

Descriptors:

• *MATHEMATICAL MODELS
• *PARTICLES
• *PENETRATION
• *TARGETS
• *TERMINAL BALLISTICS
• ANGLES
• DYNAMICS
• EMBEDDING
• PROJECTILES
• RICOCHET
• VELOCITY

Subject Categories:

• Numerical Mathematics
• Ballistics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE